Nishanth

Go Math Grade 1 Chapter 3 Answer Key Addition Strategies

Curious George

There are 4 fish in the tank. If you doubled the number of fish, how many would there be?

Addition Strategies Show What You Know

Model Addition

Use to show each number. Draw the cubes. Write how many in all.

Question 1.

Answer:

2         +           3         =                 5

+ =

Therefore, there are 5 in total

Use Symbols to Add
Use the picture. Write the addition sentence.

Question 2.

Answer: 2 + 4 = 6

Explanation:

The number of red bugs =  2

The number of green bugs = 4

Total : 2 + 4 = 6

Therefore, the total number of bug pictures are 6.

Question 3.

Answer: 4

Explanation:

The number of purple butterflies = 3

The number of orange butterflies = 1

Total butterflies : 3 + 1 = 4

Therefore, there are 4 butterflies

Add in Any Order

Use and to add. Color to match. Write each sum.

Question 4.

1 + 4 = __

Answer:

+ =

Total : 1 + 4 = 5

Question 5.

4 + 1 = ___

Answer:

+ =

Total : 4 + 1 = 5

Addition Strategies Vocabulary Builder

Visualize It
Write the addends and the sum for the addition sentence

Answer:

Understand Vocabulary
Use a review word to complete the sentence.

Question 1.
4 and 3 in 4 + 3 = 7 are ___

Answer:

In 4 + 3 = 7 , 4 and 3 are addends.

Question 2.
4 + 3 = 7 is an ___

Answer:

4 + 3 = 7 is an Addition sentence.

Question 3.
4 cubes and 3 cubes are put together to __ the groups.

Answer:

4 cubes and 3 cubes are put together to 7 the groups.

Addition Strategies Game: Ducky Sums

Ducky Sums

Materials

Play with a partner.
1. Put your on START.
2. Toss the . Move your that number of spaces.
3. Use a a , and a to make the spinner. Spin.
4. Add the number you spin and the number your is on. Your partner checks the sum.
5. Take turns. The winner is the first person to get to END.

Addition Strategies Vocabulary Game

Going Places with GOMATH! words

Concentration

Materials
2 sets of word cards
How to Play
Play with a partner.

1. Mix the cards. Put the cards in rows blank side up.
2. Turn over two cards.
   • If the words match, keep the pair of cards.
   • If the words do not match, turn the cards blank side up again.
3. The other player takes a turn.
4. Find all the pairs. The player with more pairs wins.

The Write Way

Reflect
Choose one idea. Draw and write about it.
• Mary writes the addition sentence 4 + 5.
Rose writes the addition sentence 5 + 4.
Will they get the same answer? Tell how you know.
• Think about the ways you learned to add. Tell about your favorite way to add. Explain why.

Lesson 3.1 Algebra • Add in Any Order

Essential Question
What happens if you change the order of the addends when you add?

Listen and Draw

Use and . Color to model the problem. Write the addition sentence.

Answer:

Addition sentence :

7 + 8 = 15

+

=

=   1               2            3            4              5             6             7            8           9           10          11         12        13           14          15

Use and . Color to change the order. Write the addition sentence.

Answer:

Addition sentence ( changing the order )  :

8 + 7 = 15

+ =

= 1               2            3            4              5             6             7            8           9           10          11         12        13           14          15

 

Math Talk
MATHEMATICAL PRACTICES

Describe how knowing the fact 7 + 8 helps you find 8 + 7.

Model and Draw

Answer:

5 + 6 = 11

Fact : Even after changing the order of addends , the sum is same .

Share and Show MATH BOARD

Add. Change the order of the addends. Add again.

Question 1.

Answer:

8 + 9 = 17

Addition sentence after changing the order of addends =

9 + 8 = 17

Question 2.

Answer:

6 + 7 = 1 3

Addition sentence after changing the order of addends =

7 + 6 = 13

Question 3.

Answer:

7 + 5 = 12

Addition sentence after changing the order of addends =

5 + 7 = 12

Question 4.

Answer:

2 + 8 = 10

Addition sentence after changing the order of addends =

8 + 2 = 10

Question 5.

Answer:

9 + 2 = 11

Addition sentence after changing the order of addends =

2 + 9 = 11

Question 6.

Answer:

8 + 4 = 12

Addition sentence after changing the order of addends =

4 + 8 = 12

On Your Own

MATHEMATICAL PRACTICE
Attend to Precision Add. Change the order of the addends. Add again.

Question 7.

Answer:

9 + 6 = 15

Addition sentence after changing the order of addends =

6 + 9 = 15

Question 8.

Answer: 0 + 6 = 6

Addition sentence after changing the order of addends =

6 + 0 = 6

Question 9.

Answer:

8 + 3 = 11

Addition sentence after changing the order of addends =

3 + 8 = 11

Question 10.

Answer:

5 + 9 = 14

Addition sentence after changing the order of addends =

9 + 5 = 14

Question 11.

Answer:

4 +5 = 9

Addition sentence after changing the order of addends =

5 + 4 = 9

Question 12.

Answer:

8 + 5 = 13

Addition sentence after changing the order of addends =

5 + 8 = 13

Question 13.
THINK SMARTER
Nina uses the number sentence 3 + 7 = 10 to tell about her toy trucks. What other number sentence could Nina write to tell about her trucks using the same addends?
__ = __ + __

Answer:

Given,

Addition sentence : 3 + 7 = 10

Other Addition sentence : 10 = 7 + 3

Question 14.
GO DEEPER
Explain If Adam knows 4 + 7 = 11, what other addition fact does he know? Write the new fact in the box. Tell how Adam knows the new fact.

________________________
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
________________________

Answer:

Given ,

Addition sentence = 4 + 7 = 11

Other addition fact : 7 + 5 = 11

Problem Solving • Applications WRITE Math

Write two addition sentences you can use to solve the problem. Write the answer.

Question 15.
Roy sees 4 big fish and 9 small fish. How many fish does Roy see?
__ fish
__ + __ = __
__ + __ = __

Answer: 13

Explanation:

Given,

Number of big fishes = 4

Number of small fishes = 9

Total number of fishes = 4 + 9 = 13

Therefore, Roy sees 13 fishes

Addition sentences:

4 + 9 = 1 3

9 + 3 = 13

Question 16.
THINK SMARTER
Justin has 6 toys. He gets 8 more toys. How many toys does he have now?
__ toys
__ + __ = __
__ + __ = __

Answer: 14

Explanation:

Given,

Justin has 6 toys.

Number of toys he gets more = 8

Total : 6 + 8 = 14

Therefore, total number of toys = 14

Addition sentences:

6 + 8 = 14

8 + 6 = 14

Question 17.
THINK SMARTER
Anna has two groups of pennies. She has 10 pennies in all. When she changes the order of the addends, the addition sentence is the same. What sentence can Anna write?

__ = __ + __

Answer: 5 + 5 = 10

Explanation :

Given,

Anna has 2 groups of pennies and also total number of pennies = 10

The addition sentence can be written with same addends as

5 + 5 = 10

Question 18.
THINK SMARTER
Write the addends in a different order.
3 + 4 = 7
__ + __ = 7

Answer:

4 + 3 = 7

TAKE HOME ACTIVITY
• Ask your child to explain what happens to the sum when you change the order of the addends.

Algebra • Add in Any Order Homework & practice 3.1

Add. Change the order of the addends. Add again.

Question 1.

Answer:

7 + 3 =10

3 + 7 = 10

Question 2.

Answer:

4 + 7 = 11

7 + 4 = 11

Question 3.

Answer:

9 + 8 = 17

8 + 9 = 17

Problem Solving

Write two addition sentences you can use to solve the problem.

Question 4.
Camila has 5 shells. Then she finds 4 more shells. How many shells does she have now?
__ + __ = __
__ + __ = __

Answer: 9

Explanation :

Given that,

The number of shells Camila have = 5

The number of shells she finds more = 4

Total : 5+4= 9

Therefore, the number of shells she have now = 9

Addition sentences :

5 + 4 = 9

4 + 5 = 9

Question 5.
WRITE Math
Use pictures or words to explain how you would use the sum of 13 to show how to add in any order.

13 can be shown as the sum of 6 and 7

6 + 7 = 13

+

=

Lesson Check

Question 1.
What is another way to write 7 + 6 = 13?
6 + 7 = __

Answer:

6 + 7 = 13

Question 2.
What is another way to write 6 + 8 = 14?
8 + 6 = __

Answer:

8 + 6 = 14

Spiral Review

Question 3.
What is the sum? Write the number.

Answer:

4 + 3 = 7

Question 4.
How many nests are there? Write the number.
2 nests and 1 more nest __ nests

Answer: 3

Explanation :

2 + 1 = 3

Therefore, total number of nests = 3

Lesson 3.2 Count On

Essential Question
How do you count on 1, 2, or 3?

Listen

Start at 9. How can you count on to add? Add 1.

Add 1.  9 + 1 =10

Add 2.  9 + 2 = 11

Add 3.  9 + 3 = 12

Math Talk
MATHEMATICAL PRACTICES
Analyze How is counting on 2 like adding 2?

Share and Show MATH BOARD

Circle the greater addend. Draw to count on 1, 2, or 3. Write the sum.

Question 1.

Answer:

Greater addend : 6

6 + 2 = 8

 

 

Question 2.

6 + 3 = __

Answer:

Greater addend : 6

6 + 3 = 9

Question 3.

__ = 1 + 6

Answer:

Greater addend = 6

6 + 1 = 7

Question 4.

__ = 7 + 1

Answer:

Greater addend  : 7

7 + 1 = 8

Question 5.

2 + 7 = __

Answer:

Greater addend = 7

7 + 2 = 9

Question 6.

__ = 7 + 3

Answer:

Greater addend : 7

7 + 3 = 10

On Your Own

MATHEMATICAL PRACTICE
Circle the greater addend. Count on to find the sum.

Question 7.

Answer:

Greater addend : 9

1 + 9 = 10

Question 8.

Answer:

Greater addend  : 8

3 + 8 = 11

Question 9.

Answer:

Greater addend : 8

1 + 8 = 9

Question 10.

Answer:

Greater addend : 6

1 + 6 = 7

Question 11.

Answer :

Greater addend : 9

9 + 3 =12

Question 12.

Answer:

Greater addend : 7

7 + 2 = 9

Question 13.

Answer:

Greater addend : 6

2 + 6 = 8

Question 14.

Answer:

Greater addend : 5 + 3 = 8

Question 15.

Answer:

Greater addend : 7

7 + 1 = 8

Question 16.

Answer:

Greater addend = 7

3 + 7 =10

Question 17.

Answer:

Greater addend : 9

9 + 2 = 11

Question 18.

Answer:

Greater addend : 4

3 + 4 = 7

Question 19.
GO DEEPER
Adam has 6 hats. Molly has 3 hats. They stack all their hats. Then Blake puts 2 more hats on the stack. How many hats are on the stack?
__ + __ = ___ hats
__ + __ = ___ hats

Answer:

6 + 3 = 9

9 + 2 = 11

Question 20.
MATHEMATICAL PRACTICE
Explain Terry added 3 and 7. He got a sum of 9. His answer is not correct. Describe how Terry can find the correct sum.
_______________
_ _ _ _ _ _ _ _ _ _ _
_______________
_______________
_ _ _ _ _ _ _ _ _ _ _
_______________

Answer:

No, he is wrong .

The sum of 3 and 7 is 10

Addition sentence :  3 + 7 = 10

Starts at 7 and count by 3 , means 8 , 9 , 10

So, the answer is 0.

Problem Solving • Applications WRITE Math

Draw to solve. Write the addition sentence.

Question 21.
THINK SMARTER
Cindy and Joe pick 8 oranges. Then they pick 3 more oranges. How many oranges do they pick?
__ + __ = ___ oranges

Answer: 11

Explanation :

Given that,

The number of oranges Cindy and Joe pick = 8

The number of  more oranges they pick = 3

Total : 8 + 3 = 11 oranges

Therefore, the number of total oranges = 11

+     

________________________________________________________________________________________________________

=

1                  2                3                 4                5              6                  7                  8               9               10              11

Which three numbers can you use to complete the problem?

Question 22.
THINK SMARTER
Jennifer has __ stamps. She gets __ more stamps. How many stamps does she have now?
__ + __ = __ stamps

Answer: 10

Explanation :

Jennifer has  7 stamps

Number of more stamps = 3

Addition sentence :

7 + 3 = 10

Question 23.
THINK SMARTER
Count on from 3. Write the number that shows 2 more in the box below

Answer: 5

TAKE HOME ACTIVITY
• Have your child tell you how to count on to find the sum for 6 + 3.

Count On Homework & Practice 3.2

Circle the greater addend. Count on to find the sum.

Question 1.

Answer:

Greater addend : 8

8 + 2 = 10

Question 2.

Answer:

Greater addend : 7

1 + 7 = 8

Question 3.

Answer:

Greater addend : 9

3 + 9 = 12

Question 4.

Answer:

Greater addend : 5

5 + 3 = 8

Problem Solving

Draw to solve. Write the addition sentence.

Question 5.
Jon eats 6 crackers. Then he eats 3 more crackers. How many crackers does he eat?
__ + __ = __ crackers

Answer:  9

Explanation :

Number of crackers Jon eat = 6

Number of crackers he ate more = 3

Total : 6 + 3 = 9 Crackers

Therefore, Jon ate 9 crackers .

Question 6.
WRITE Math
Use pictures or words to explain how you can find 9 + 3 by counting on.

Answer:

9 + 3 = 12

  +  =

1      2      3        4      5       6      7       8     9              10     11    12       

Lesson Check

Question 1.
Count on to solve 5 + 2. Write the sum
__

Answer:

5 + 2 = 7

Question 2.
Count on to solve 1 + 9. Write the sum.
__

Answer:

1 + 9 = 10

Spiral Review

Question 3.
What does the model show?
__ + __ = ___

Answer:

3 + 3 = 6

+ =

Question 4.
4 ducks swim in the pond. 2 more ducks join them. How many ducks are in the pond now? Complete the model and the number sentence.

4 + 2 = __

Answer:

4 + 2 = 6

Lesson 2.3 Add Doubles

Essential Question
What are doubles facts?

Listen and Draw

Use . Draw to solve. Write the addition sentence.

__ + __ = __

Answer:

2 + 2 = 4

+ =

Math Talk
MATHEMATICAL PRACTICES
Use Tools Describe how your model shows a doubles fact.

Model and Draw

Why are these doubles facts?

Answer:                                                             Answer:

1 + 1 = 2                                                           2 + 2 = 4

+ =                                         +    =

Share and Show MATH BOARD

Use . Draw to show your work. Write the sum.

Question 1.

Answer:

3 + 3 = 6

+

_____________________________

=

Question 2.

Answer:

4 + 4 = 8

+

___________________________

=

Question 3.

Answer:

5 + 5 = 10

+ 

_______________________________________________

Question 4.

Answer: 6 + 6 = 12

+ 

____________________________________________________________________________

=

On Your Own

GO DEEPER
Use . Draw to show your work. Write the sum.

Question 5.

Answer:

7 + 7 = 14

+   

______________________________________________________________________________

=

Question 6.

Answer:

8 + 8 = 16

+   

________________________________________________________________________

= 

Question 7.
MATHEMATICAL PRACTICE
Look for a Pattern Look back at Exercises 1 – 6. Write the fact that would be next in the pattern. Draw to show your work.

Add.

Question 8.

Answer:

5 + 5 = 10

+

________________________________________________________________

=

 

Question 9.

Answer:

7 + 7 = 14

+   

______________________________________________________________________________

=

 

Question 10.

Answer: 6 + 6 = 12

+ 

____________________________________________________________________________

=

 

Question 11.

Answer:

10 + 10 = 20

  +   =

           

Question 12.

Answer:

4 + 4 = 8

+

___________________________

=

 

Question 13.

Answer:

8 + 8 = 16

+   

________________________________________________________________________

= 

 

Problem Solving • Applications WRITE Math

Write a doubles fact to solve.

Question 14.
THINK SMARTER
Meg and Paul each put 8 apples into a basket. How many apples are in the basket?
__ + ___ = __ apples

Answer : 16

Explanation :

The number of apples meg kept in a basket = 8

The number of apples Paul kept in a basket = 8

Total : 8 + 8 = 16 apples

Therefore, total number of apples in the basket = 16

Question 15.
THINK SMARTER
There are 18 people at the party. Some are boys and some are girls. The number of boys is the same as the number of girls.
__ = __ + __

Answer : 9 + 9 = 18

Explanation :

Given,

Total number of people in the party = 18

Also given , The number of boys is the same as the number of girls.

So, 9 + 9 = 18.

Question 16.
THINK SMARTER
The cubes show a doubles fact. Choose the doubles fact and the sum.

Answer:

The number sentence with doubles fact = 4 + 4 = 8

 

TAKE HOME ACTIVITY
• Have your child choose a number from 1 to 10 and use that number in a doubles fact. Repeat with other numbers.

Add Doubles Homework & Practice 3.3

Use . Draw to show your work. Write the sum.

Question 1.

Answer:

4 + 4 = 8

+ =

Question 2.

Answer:

6 + 6 = 12

+ =

Question 3.

Answer:

3 + 3 = 6

+ =

Question 4.

Answer:

8 + 8 = 16

  +  =                                                                                                                                                                                        

Problem Solving

Write a doubles fact to solve.

Question 5.
There are 16 crayons in the box. Some are green and some are red. The number of green crayons is the same as the number of red crayons.
__ = __ + __

Answer: 16 = 8 + 8

Explanation:

Given ,

The total number of crayons in the box = 16

Also give, the number of green crayons is the same as the number of red crayons.

Now, By using doubles fact we can write number sentence as:

8 + 8 = 16

Question 6.
WRITE Math
Use pictures or words to explain how you could find the sum of 7 + 7.

Answer:

7 + 7 = 14

+ =

Lesson Check

Question 1.
Write a doubles fact with the sum of 18.
__ + __ = 18

Answer:

A doubles fact with the sum of 18 =

9 + 9 = 18

Question 2.
Write a doubles fact with the sum of 12.
__ + __ = 12

Answer:

A doubles fact with the sum of 12 =

6 + 6 = 12

Spiral Review

Question 3.
What is the sum of 3 and 2? Draw the . Write the sum.
__+ __ = __

Answer: 5

Explanation:

The sum of 3 and 2 is 5

Number sentence :

3 + 2 = 5

+ =

Question 4.
Draw circles to show the numbers. Write the sum.
__ + __ = __

Lesson 3.4 Use Doubles to Add

Essential Question
How can you use doubles to help you add?

Listen and Draw

Draw to show the problem. Write the number of fish.

There are __ fish.

Math Talk
MATHEMATICAL PRACTICES

Look for Structure How does knowing 3 + 3 help you solve the problem?

Model and Draw

How can a doubles fact help you solve 6 + 7?

So, 6 + 7 = __

Answer:

6 + 7 =  13

By using doubles fact ,

13 can be shown as 6 + 6 + 1 = 13

Share and Show MATH BOARD

Use to model. Make doubles. Add.

Question 1.

Answer :

9 + 8 = 17

8 + 8 + 1 = 17

So, 9 + 8 = 17

Question 2.

Answer:

5 + 5 + 1 = 11

So, 5 + 6 = 11

On Your Own

MATHEMATICAL PRACTICE
Use a Concrete Model
Use . Make doubles. Add.

Question 3.

Answer:

7 + 8 = 15

By using doubles fact ,

7 + 7 + 1 = 15

Question 4.

Answer :

5 + 4 = 9

By using doubles fact ,

4 + 4 + 1 = 9

Question 5.
THINK SMARTER
Mandy has the same number of red and yellow leaves. Then she finds one more yellow leaf. There are 17 leaves in all. How many leaves are red? How many leaves are yellow?
__ red leaves __ yellow leaves

Answer :

Explanation :

Given , the total number of leaves = 17

Also given , Mandy has the same number of red and yellow leaves

And also find another yellow flower

By using doubles plus one effect , we can show addition sentence as :

8 + 8 + 1 = 17

Therefore,

Number of red flowers = 8

Number of yellow flowers = 9.

GO DEEPER
Explain Would you use count on or doubles to solve? Why?

Question 6.
3 + 4

Answer: 3 + 3 + 1 = 7

Doubles plus one fact.

Question 7.
3 + 9

Answer :

9 and count on 3

Problem Solving • Applications

Question 8.
THINK SMARTER
Use what you know about doubles to complete the Key. Write the missing sums.

Answer :

Question 9.
THINK SMARTER
There are 7 red cubes. There are 8 yellow cubes. How many cubes are there in all? Use a double to add. Write the missing numbers.

Answer: 15

Explanation:

The number of red cubes = 7

The number of yellow cubes = 8

Total : 7 + 8 = 15

Number sentence with double fact = 7 + 7+ 1 = 15

So, 7 + 8 = 15

TAKE HOME ACTIVITY
• Ask your child to show you how to use what he or she knows about doubles to help solve 6 + 5.

Use Doubles to Add Homework & Practice 3.4

Use . Make doubles. Add.

Question 1.

Answer:

5 + 6 = 11

The number sentence with doubles fact =

5 + 5 + 1 = 11

Question 2.

So, 9 + 8 = __

Answer:

9 + 8 = 17

The number sentence with doubles fact =

8 + 8 + 1 = 17

Use doubles to help you add.

Question 3.
8 + 7 = __

Answer:

Doubles plus one fact .

Explanation :

8 + 7 = 15

The number sentence with doubles fact :

7 + 7 + 1 = 15

Question 4.
6 + 5 = __

Answer:

Doubles plus one fact .

Explanation :

6 + 5 = 11

The number sentence with doubles plus one fact :

5 + 5 + 1 = 11

Question 5.
7 + 6 = __

Answer:

Doubles plus one fact .

Explanation :

7 + 6 = 13

The number sentence with doubles plus one fact :

6 + 6 + 1 = 13

Problem Solving

Solve. Draw or write to explain.

Question 6.
Bo has 6 toys. Mia has 7 toys. How many toys do they have?
__ toys

Answer: 13

Explanation:

The number of toys Bo have = 6

The number of toys Mia have = 7

Total : 6 +7 = 13

Therefore, the total number of toys they both have = 13

 

Question 7.
WRITE Math
Draw and label a picture to show how knowing 7 + 7 helps you find 7 + 8.

Lesson Check

Question 1.
Use doubles to find the sum of 7 + 8. Write the number sentence.
__ + __ + __ = __

Answer:

The sum of 7 + 8 = 15

The number sentence with doubles plus one fact :

7 + 7 + 1 = 15

Spiral Review

Question 2.
Circle the part you take from the group. Cross it out. Then write the difference.

8 – 6 = __

Answer:

8 – 6 = 2

Question 3.
There are 7 gray kittens. 2 kittens are black. How many fewer black kittens are there than gray kittens?
Use the bar model to solve. Then write the number sentence.

__ – __ = __

Answer:

7 – 2 = 5

Therefore, there are 5 fewer black kittens are there than gray kittens.

Lesson 3.5 Doubles Plus 1 and Doubles Minus 1

Essential Question
How can you use what you know about doubles to find other sums?

Listen and Draw

How can you use the doubles fact, 4 + 4, to solve each problem? Draw to show how. Complete the addition sentence.

Answer :

1. 4 + 4 + 1 = 9 – Doubles plus one fact
2.  4 + 4 – 1 = 7 – Doubles minus one fact.

 

Math Talk
MATHEMATICAL PRACTICES

Explain what happens to the doubles fact when you increase one addend by one or decrease one addend by one.

Share and Show MATH BOARD

Use to add. Solve the doubles fact. Then use doubles plus one or doubles minus one. Circle + or − to show how you solved each one.

Question 1.

Answer:

2 + 2 = 4

2+ 2+ 1 = 5  doubles plus one

2 + 2 – 1 = 3 – doubles minus one.

Question 2.

Answer :

3 + 3 = 6

3 + 3 + 1 = 7 – Doubles plus one

3 + 3 – 1 = 5 – Doubles minus one

 

Question 3.

Answer :

4 + 4 = 8

4 + 4 + 1 = 9 – Doubles plus one

4 + 4 – 1 = 7 – Doubles minus one

On Your Own

MATHEMATICAL PRACTICE
Make Connections Add. Write the doubles fact you used to solve the problem.

Question 4.
8 + 9 = __

Answer:

Doubles plus one fact .

Explanation :

8 + 9 = 17

The number sentence with doubles plus one fact :

8 + 8 + 1 = 17

 

Question 5.
2 + 3 = __

Answer:

Doubles plus one fact .

Explanation :

2 + 3 = 5

The number sentence with doubles plus one fact :

2 + 2 + 1 = 5

Question 6.
7 + 6 = __

Answer:

Doubles plus one fact .

Explanation :

7 + 6 = 13

The number sentence with doubles plus one fact :

6 + 6 + 1 = 15

Question 7.
6 + 5 = __

Answer:

Doubles plus one fact .

Explanation :

6 + 5 = 11

The number sentence with doubles plus one fact :

5 + 5 + 1 = 15

Question 8.
3  + 4 = __

Answer:

Doubles plus one fact .

Explanation :

3 + 4 = 7

The number sentence with doubles plus one fact :

3 + 3 + 1 = 7

Question 9.
4 + 5 = __

Answer:

Doubles plus one fact .

Explanation :

4 + 5 = 9

The number sentence with doubles plus one fact :

4 + 4 + 1 = 15

Question 10.
THINK SMARTER
Brianna has 6 toy ducks. Ian has the same number of toy ducks and a toy fish. How many toys do Brianna and Ian have?

Answer : 13

Explanation :

The number of toy ducks Brianna

THINK SMARTER
Add. Write the doubles plus one fact. Write the doubles minus one fact.

Question 11.

Answer :

6 + 6 = 12

6 + 6 + 1 = 1 3

6 + 6 – 1 = 11

Problem Solving • Applications

Question 12.
GO DEEPER
Grace wants to write the sums for the doubles plus one and doubles minus one facts. She has started writing sums. Help her find the rest of the sums.

Question 13.
THINK SMARTER
Choose all the doubles facts that can help you solve 4 + 5.

Answer :

9 + 9 = 18 – No

5 + 5 = 10 -Yes

4 + 4 = 8 – Yes

TAKE HOME ACTIVITY
• Have your child explain how to use a doubles fact to solve the doubles plus one fact 4 + 5 and the doubles minus one fact 4 + 3.

Doubles Plus 1 and Doubles Minus 1 Homework & Practice 3.5

Add. Write the doubles fact you used to solve the problem.

Question 1.
8 + 7 = __

Answer:

Doubles plus one fact .

Explanation :

8 + 7 = 15

The number sentence with doubles plus one fact :

7 + 7 + 1 = 15

Question 2.
6 + 7 = __

Answer:

Doubles plus one fact .

Explanation :

6 + 7 = 13

The number sentence with doubles plus one fact :

6 + 6 + 1 = 13

Question 3.
4 + 3 = __

Answer:

Doubles plus one fact .

Explanation :

4 + 3 = 7

The number sentence with doubles plus one fact :

3 + 3 + 1 = 7

Question 4.
2 + 1 = __

Answer:

Doubles plus one fact .

Explanation :

2 + 1 = 3

The number sentence with doubles plus one fact :

1 + 1 + 1 = 3

Question 5.
8 + 9 = __

Answer:

Doubles plus one fact .

Explanation :

8 + 9 = 17

The number sentence with doubles plus one fact :

8 + 8 + 1 = 17

Question 6.
3 + 2 = __

Answer:

Doubles plus one fact .

Explanation :

3 + 2 = 5

The number sentence with doubles plus one fact :

2 + 2 + 1 = 5

Problem Solving

Question 7.
Andy writes an addition fact. One addend is 9. The sum is 17. What is the other addend? Write the addition fact.
__ + ___ = 17

Answer :

9 + 8 = 17

Therefore, other addend = 8

Question 8.
WRITE Math
Use pictures or words to explain how you would use doubles plus one to solve 4 + 5.

Answer :

4 + 5 = 9

By using doubles plus one fact ,

4 + 4 + 1 = 9

Lesson Check

Question 1.
Use the picture. Write a doubles plus one number sentence.

__ + __ + __

Answer:

The number sentence with double plus one :

2 + 2 + 1 = 5

Question 2.
Which doubles fact helps you solve 8 + 7 = 15? Write the number sentence.
__ + __ + __

Answer:

8 + 7 = 15

The number sentence with doubles plus one fact  :

7 + 7 + 1 = 15

Spiral Review

Question 3.
There are 7 large dogs and 2 small dogs. How many dogs are there?
Use ○ to solve. Draw to show your work. Write the number sentence and how many.
__ dogs

Answer :

7 + 2 = 9

Therefore, total number of dogs = 9

Question 4.
What is the sum of 2 and 1 more? Draw the . Write the sum.
__ 2 + 1 = __

Answer : 2 + 1 = 3

+ =

Lesson 3.6 Practice the Strategies

Essential Question
What strategies can you use to solve addition fact problems?

Listen and Draw

Think of different addition strategies. Write or draw two ways you can solve 4 + 3.

Math Talk
MATHEMATICAL PRACTICES
Look for Structure Why is the sum the same when you use different strategies?

Model and Draw

These are the ways you have learned to find sums.

Share and Show MATH BOARD

Question 1.

Answer :

4 + 1 =5

5+ 1 = 6

6+ 1= 7

7 + 1 = 8

 

Question 2.

5+ 2= 7

6 + 2 = 8

7 + 2 = 9

8 + 2 = 10

Question 3.

Answer :

6 + 3 = 9

7 + 3 = 10

8 + 3 = 11

9 + 3 = 1 2

Question 4.

Answer :

7 + 7 = 14

8 + 8 = 16

9 + 9 =18

10 + 10 = 20

 

Question 5.

Answer :

Doubles plus one :

5 + 5 + 1 = 11

6 + 6 + 1 = 13

Doubles minus one :

7 + 7 – 1 = 15

8 + 8 -1 = 17

On Your Own

MATHEMATICAL PRACTICE
Apply Add. Color doubles facts . Color count on facts . Color doubles plus one or doubles minus one facts .

Question 6.
9 + 9 = __

Answer :

Doubles fact

9 + 9 = 18

Question 7.
7 + 1 = __

Answer :

7 + 1 = 8

Question 8.
5 + 3 = __

Answer :

5 + 3 = 8

Question 9.
2 + 9 = __

Answer :

2 + 9 = 11

Question 10.
7 + 3 = __

Answer :

7 + 3 = 10

Question 11.
7 + 7 = __

Answer :

7 + 7 = 14

Question 12.
6 + 5 = __

Answer :

6 + 5 = 11

Question 13.
2 + 8 = __

Answer :

8 + 2 = 10

Question 14.
8 + 8 = __

Answer :

8 + 8 = 16

Question 15.
8 +9 = __

Answer :

8 + 9 = 17

Question 16.
9 + 3 = __

Answer :

9 + 3 = 12

Question 17.
7 + 8 = __

Answer :
7 + 8 = 15

THINK SMARTER
Make a counting on problem. Write the missing numbers.

Question 18.
__ birds were in a tree. __ more birds flew there. How many birds are in the tree now?
__ birds

Answer :

The birds on a tree = 7

The number of birds flew there = 3

Total : 7 + 3 = 10

TAKE HOME ACTIVITY
• Have your child point out a doubles fact, a doubles plus one fact, a doubles minus one fact, and a fact he or she solved by counting on. Have him or her describe how each strategy works.

Practice the Strategies Homework & Practice 3.6

Add. Color doubles facts . Color count on facts . Color doubles plus one or doubles minus one facts .

Question 1.
8 + 8 = __

Answer:

8 + 8 = 16

Question 2.
8 + 1 = __

Answer :

8 + 1 = 9

Question 3.
1 + 7 = __

Answer :

1 + 7 = 8

Question 4.
8 + 3 = __

Answer :

8  + 3 = 11

Question 5.
5 +5 = __

Answer :

5 + 5 = 10

Question 6.
8 + 7 = __

Answer :

8 + 7 = 15

Question 7.
8 + 9 = __

Answer :

8 + 9 = 17

Question 8.
6 + 3 = __

Answer :

6 + 3 = 9

Question 9.
6 + 6 = __

Answer :

6 + 6 = 12

Problem Solving

Make a counting on problem. Write the missing numbers.

Question 10.
__ apples are in a bag. __ more apples are put in the bag. How many apples are in the bag now?
__ apples

Answer :

5 apples are in a bag.

2 more apples are put in the bag.
Total number of apples = 5 + 2 = 7

Question 11.
WRITE Math
Use pictures or words to explain a strategy you would use to find 8 + 9.

Answer :

8 + 9 = 17

Lesson Check

Question 1.
Which strategy would you use to find 2 + 8? Explain how you decided.
_________________________
_________________________

Answer :

Count on.

8 + 2 = 10

Question 2.
What is the sum of 9 + 9? Write the number.
__

Answer: 18

The sum of 9 + 9= 18

Spiral Review

Question 3.
What is the sum of 5 + 2 or 2 + 5? Why is the sum the same?
_________________________
_________________________

Answer: The sum of 5 + 2 or 2 + 5 = 7

The sum is same because

Question 4.
How many flowers are there? Write the number.
3 flowers and 3 more flowers __ flowers

Answer : 6

3 + 3 = 6

Addition Strategies Mid-Chapter Checkpoint

Concepts and Skills

Add. Change the order of the addends. Add again.

Question 1.

Answer :

4 + 8 = 12

Question 2.

Answer :

9 + 7 = 16

Circle the greater addend. Count on to find the sum.

Question 3.

Answer:

Greater addend : 8

1 + 8 = 9

Question 4.

Answer:

Greater addend : 7

3 + 7 = 10

Question 5.

Answer:

Greater addend : 9

9 + 2 = 11

Question 6.

Answer :

Greater addend  : 6

6 + 3 = 9

Question 7.

Answer :

Greater addend  : 7

7 + 1 = 8

Question 8.

Answer :

Greater addend  : 8

2 + 8 = 10

Use doubles to help you add.

Question 9.
7 + 8 = __

Answer :

7 + 8 = 15

Doubles fact :

7 + 7 + 1 = 15

Question 10.
6 + 7 = __

Answer :

6 +7 = 13

Doubles fact  :

6 + 6 + 1 = 13

Question 11.
9 + 8 = __

Answer :

9 + 8 = 17

Doubles fact :

8 + 8 +1 = 17

Question 12.
THINK SMARTER
Write a count on 1 fact to show a sum of 8. Then write a doubles fact to show a sum of 8.

Answer :

Count on fact to show sum of 8 =

7 +1 = 8

Doubles fact plus one = 4+ 4+ 1 = 8

Lesson 3.7 Add 10 and More

Essential Question
How can you use a ten frame to add 10 and some more?

Listen and Draw

What is 10 + 5? Use and the ten frame. Model and draw to solve.

Answer:

10+ 5 = 15

 

 

Math Talk
MATHEMATICAL PRACTICES
Reasoning Explain how your model shows 10 + 5.

Model and Draw
You can use a ten frame to add 10 + 6.

Share and Show MATH BOARD

Draw to show 10. Draw to show the other addend. Write the sum.

Question 1.

Answer:

10 + 3 = 13

+

Question 2.

Answer :

+

=

 

Question 3.

Answer :

10+ 1 = 11

+

=

 

Question 4.

Answer :

10 + 2 = 12

+

=

 

Question 5.

Answer :

10+ 4 = 14

+

=

 

Question 6.

Answer :

10+ 7 = 17

+

=

On Your Own

MATHEMATICAL PRACTICE
Represent a Problem
Draw to show 10. Draw to show the other addend. Write the sum.

Question 7.

Answer:

10 + 8 = 18

+

=

Question 8.

Answer:

10 + 2 = 12

+ =

Question 9.

Answer:

10 + 6 = 16

         =

+

 

Question 10.

Answer:

10+9 = 19

     

+   

 =

Add.

Question 11.

Answer:

10+ 1 = 11

   

+

=

 

Question 12.

Answer :

4 + 10 = 14

             

+   

 =

 

Question 13.

Answer :

5 + 10 = 15

             

+           

 =

 

Question 14.

Answer :

10 + 3 = 13

   

+

=

 

Question 15.

0 + 10 = 10

 

Question 16.
THINK SMARTER
Draw to show 10. Draw to show the missing addend. Write the missing addend.

Answer:

10+ 4 = 14

+ =

Problem Solving • Applications

GO DEEPER
Draw . Write the addition sentence. Explain your model.

Question 17.
Marina has 10 crayons. She gets 7 more crayons. How many crayons does she have now?

Answer:

1 7

Explanation :

The number of crayons Marina have = 10

The number of crayons she gets more = 7

Addition sentence : 1 0 + 7 = 17

Therefore, total crayons Marina have = 17

 

 

Question 18.
THINK SMARTER
Match the models to the number sentences.

Answer :

TAKE HOME ACTIVITY
• Have your child choose a number between 1 and 10 and then find the sum of 10 and that number. Repeat using other numbers.

Add 10 and More Homework & Practice 3.7

Draw red ○ to show 10. Draw ○ yellow to show the other addend. Write the sum.

Question 1.

Answer :

10 + 7 = 17

Question 2.

Answer :

10+ 5 = 15

 

Problem Solving

Draw red and yellow ○ to solve. Write the addition sentence.

Question 3.
Linda has 10 toy cars. She gets 6 more cars. How many toy cars does she have now?
__ + __ = __ toy cars

Answer: 16

Explanation:

The number of toys Linda have = 10

The number of toys she gets more = 6

Total : 10 + 6 = 16

Therefore, the total number of toys she have now = 16

Question 4.
WRITE Math
Use pictures or words to explain how you can solve 10 + 6.

Lesson Check

Question 1.
Draw more to show the addition fact. Then solve.

Question 2.
What number sentence does this model show? Write the number sentence.

__ + __ = __

Answer:

The addition sentence :

10 + 8 = 18

Spiral Review

Question 3.
Show three different ways to make 10. Write the number sentences.

Answer:

1. 2 + 8 = 10

2. 5 + 5 = 10

3. 8 + 2 = 10

Question 4.
There are 3 large turtles and 1 small turtle. How many turtles are there? Write the number sentence and how many.
__ turtles

Answer : 4

Explanation :

The number of large turtles : 3

The number of small turtles = 1

Number sentence : 3 + 1 = 4

Therefore, total number of turtles = 4

Lesson 3.8 Make a 10 to Add

Essential Question
How do you use the make a ten strategy to add?

Listen and Draw
What is 9 + 6? Use and the ten frame. Model and draw to solve.

Answer:

9 + 6 = 15

9 + 1 = 10

10 + 5 = 15

Math Talk
MATHEMATICAL PRACTICES
Use Tools Why do you start by putting 9 counters in the ten frame?

Model and Draw

Why do you show 8 in the ten frame to find 4 + 8?

Share and Show MATH BOARD
Use and a ten frame. Show both addends. Draw to make a ten. Then write the new fact. Add.

Question 1.

Answer :

9 + 5 = 14

9 + 1 = 10

So, 10 + 4 = 14

  + =

                                           

Question 2.

Answer :

4 + 7 = 11

7 + 3 = 10

10 + 1 = 11

+ =

                                                         

Question 3.

Answer :

9 + 8 = 17

9 + 1 = 10

10+ 7 = 17

  + = 

                               

On Your Own

MATHEMATICAL PRACTICE
Use a Concrete Model

Use and a ten frame. Show both addends. Draw to make a ten. Then write the new fact. Add.

Question 4.

Answer :

8 + 2 = 10

10 + 3 = 13

So, 5 + 8 = 13

+ =

                                                         

Draw to make a ten. Write the missing number.

Question 5.
THINK SMARTER
Andrew has visited Cedar Hill State Park 7 times. Cathy has visited the same park 9 times. How many times did they both visit the park.

__ visits

Answer : 16 times

+ =

                                   

Question 6.
THINK SMARTER
What strategy would you choose to solve 7 + 8? Why?

Problem Solving • Applications WRITE Math

Solve.

Question 7.
10 + 8 has the same sum as 9 + __.

Answer:

10+ 8 = 18

9 + 9 = 18

Question 8.
10 + 7 has the same sum as 8 + __.

Answer:

10 + 7 = 17

8 +  9 = 17

Question 9.
10 + 5 has the same sum as 6 + __.

Answer :

10 +5 = 15

6 + 9 = 15

Question 10.
GO DEEPER
Write the numbers 6, 8, or 10 to complete the sentence __ + __ has the same sum as __ + 8

Answer:

10+ 6 = 18 has the same sum of 8 + 8.

Question 11.
THINK SMARTER
The model shows 7 + 4 = 11. Write the 10 fact that has the same sum.

Answer:

7 + 3 = 10

10 + 1 = 11

So, 7 + 4 = 11

TAKE HOME ACTIVITY
• Cut off 2 cups from an egg carton or draw a 5-by-2 grid on a sheet of paper to create a ten frame. Have your child use small objects to show how to make a ten to solve 8 + 3, 7 + 6, and 9 + 9.

Make a 10 to Add Homework & Practice 3.8

Use red and yellow ○ and a ten frame. Show both addends. Draw to make a ten. Then write the new fact. Add.

Question 1.

Answer:

5 + 5 = 10

10 + 2 = 12

So, 5 + 7 = 12

Question 2.

Answer:

9 + 1 = 10

10 + 4 = 14

So, 9 + 5 = 14

Problem Solving

Solve.
Question 3.
10 + 6 has the same sum as 7 + __.

Answer: 9

10 + 6 = 16

7 + 9 = 16

Question 4.
WRITE Math Use pictures or words to explain how you would use the make a ten strategy to solve 5 + 7.

Answer:

5 + 7 = 12

5 + 5 = 10

10 + 2 = 12

Lesson Check

Question 1.
What sum does this model show? Write the number.

Answer:

Number sentence :

10 + 5 = 15

Question 2.
What addition sentence does this model show? Write the number sentence.

Answer:

Number sentence :

10 + 4 = 14

Spiral Review

Question 3.
What is the sum of 4 + 6? Write the sum.
__

Answer:

4 + 6 = 8

The sum of 4 + 6 = 8

Question 4.
There are 2 big flowers and 4 small flowers. How many flowers are there? Write the number sentence and how many.
__ flowers

Answer: 6

Explanation :

The number of big flowers = 2

The number of small flowers = 4

Number sentence : 2 + 4 = 6

Therefore, Total number of flowers = 6

 

Lesson 3.9 Use Make a 10 to Add

Essential Question
How can you make a ten to help you add?

Listen and Draw

Draw to show the addends. Then draw to show how to make a ten. Write the sum.

Answer:

6 + 7 = 13

       

                               = 

                     

 

Math Talk
MATHEMATICAL PRACTICES
Represent Describe how the drawings show how to make a ten to solve 6 + 7.

Model and Draw

What is 9 + 6?

Share and Show MATH BOARD

Write to show how you make a ten. Then add.

Question 1.
What is 8 + 4?

So, 8 + 4 = __

Answer:

8 + 2 + 2 = 12

10 + 2 = 12

So, 8 + 4 = 12

Question 2.
What is 5 + 7?

So, 5 + 7 = __

Answer:

7 + 3 = 10

10 + 2 = 12

So, 5 + 7 = 12

On Your Own

THINK SMARTER
Write to show how you make a ten. Then add.

Question 3.
What is 7 + 8?

So, 7 + 8 = __

Answer:

8 + 2 = 10

10 + 5 = 15

So, 7 + 8 = 15

Question 4.
What is 9 + 8?

So, 9 + 8 = __

Answer:

9 + 1 = 10

1 0 + 7 = 17

So, 9 + 8 = 17 .

MATHEMATICAL PRACTICE
Use Models

THINK SMARTER
Use the model. Write to show how you make a ten. Then add.

Question 5.
Joe has 8 green balls of clay. Leah has 6 blue balls of clay. How many balls of clay do they have?

Answer:

8 + 2 + 4

10 + 4 = 14

So, 8 + 6 = 14

Therefore, There are  14 balls of clay.

Problem Solving • Applications WRITE Math

Use the clues to solve. Draw lines to match.

Question 6.
Han, Luis, and Mike buy apples. Mike buys 10 red apples and 4 green apples. Luis and Mike buy the same number of apples. Match each person to his apples.

Answer:

Question 7.
GO DEEPER
Look at Exercise 6. Han eats one apple. Now he has the same number of apples as Luis and Mike. How many red and green apples could he have?
__ red apples and __ green apples

Answer :

7 red apples and 7 green apples

Question 8.
THINK SMARTER
Does the addition show how to make a ten to add? Choose Yes or No.

Answer:

1. 8 + 2 + 2 = Yes
2. 5 + 4 + 3 = No
3. 6 + 7 + 3 = Yes

Use Make a 10 to Add Homework & Practice 3.9

Write to show how you make a ten. Then add.

Question 1.
What is 9 + 7?

__ + __ = __
So, 9 + 7 = __

Answer :

9 + 1 + 6

9 + 1 = 10

So, 9 + 6 = 15

Question 2.
What is 5 + 8?

__ + __ = __
So, 5 + 8 = __

Answer :

8 + 2 + 3

8 + 2= 10

So, 5 + 8 = 13

Problem Solving

Use the clues to solve. Draw lines to match.

Question 3.
Ann eats 10 green grapes and 6 red grapes. Gia eats the same number of grapes as Ann. Match each person to her grapes.

Answer:;

Ann – 10 green grapes and 6 red grapes .

Gia – 7 green grapes and 9 red grapes .

Question 4.
WRITE Math
Draw to explain how you would make a ten to find 5 + 8.

Lesson Check

Question 1.
Write the number sentence. Make a ten to find 8 + 4. Write the number sentence.

__ + __ + __ = __

Answer :

8 + 2 = 10

10 + 2 = 14

Spiral Review

Question 2.
What is the difference? Complete the subtraction sentence.

Answer:

5 – 5 = 0

Question 3.
What is the difference? Write the difference.

Answer :

8 – 2 = 6

Lesson 3.10 Algebra • Add 3 Numbers

Essential Question
How can you add three addends?

Listen and Draw

Use to model the problem. Draw to show your work.
__ birds

Math Talk
MATHEMATICAL PRACTICES
Apply Which two addends did you add first? Explain.

Share and Show MATH BOARD

Use to change which two addends you add first. Complete the addition sentences.

Question 1.
5 + 2 + 3 = __

Answer:

5 + 2 + 3 = 10

Addition sentences :

1.  7 + 3 = 10
2.  5 + 5 = 10

Question 2.
3 + 4 + 6 = __

Answer:

3 + 4 + 6  = 13

Addition sentences :

1.  3 + 10 = 13
2.  7 + 6 =   13

On Your Own

MATHEMATICAL PRACTICE

Compare Models
Look at the . Complete the addition sentences showing two ways to find the sum.

Question 3.
7 + 3 + 1 = __

Answer:

7 + 3 + 1 = 11

Addition sentences :

1. 7   + 4 = 11
2. 10 + 1 = 11

Question 4.
3 + 6 + 3 = __

Answer:

3 + 6 + 3 = 12

1.  6 + 6 = 12
2.  3 + 9 = 12

GO DEEPER
Solve both ways.

Question 5.

Answer:

2 + 3 + 7 = 12

1. 2 + 10 = 12
2. 5 +  7  = 1 2

Question 6.
THINK SMARTER
I used to model 3 addends. Use my model. Write the 3 addends.

Answer:

Addition sentence :

2 + 2 + 3 = 7

Problem Solving • Applications

Question 7.
THINK SMARTER
Choose three numbers from 1 to 6. Write the numbers in an addition sentence. Show two ways to find the sum.

Answer:

6 = 4 + 2

6 = 5 + 1

Question 8.
THINK SMARTER
Write each addition sentence in the box that shows the sum.

Answer:

The addition sentences shows the sum 12 are :

1. 2 + 2 + 8 = 12

2.  6 + 0 + 6 = 12

The addition sentences shows the sum 13 are :

1.  3 + 5 + 5 = 13
2.  4 + 4 +5 = 13

TAKE HOME ACTIVITY
• Have your child draw to show two ways to add the numbers 2, 4, and 6.

Algebra • Add 3 Numbers Homework & Practice 3.10

Look at the . Complete the addition sentences showing two ways to find the sum.

Question 1.
5 + 4 + 2 = __

Answer: 11

Explanation:

The two addition sentences  to find the sum are

1.  5 + 6 = 11
2.  9 + 2 = 11

Problem Solving

Question 2.
Choose three numbers from 1 to 6. Write the numbers in an addition sentence. Show two ways to find the sum.

Question 3.
WRITE Math
Use pictures or words to explain how you can find the sum for 3 + 5 + 2.

Answer:

3 + 5 + 2 = 10

+  + =

Lesson Check

Question 1.
What is the sum of 3 + 4 + 2? Write the sum.
__

Answer: 9

Explanation:

The sum of 3 + 4 + 2 = 9

Therefore, sum = 9

Question 2.
What is the sum of 5 + 1 + 4? Write the sum.
__

Answer: 10

Explanation:

The sum of 5 + 1 + 4 = 10

Therefore, sum = 10

Spiral Review

Question 3.
What is the sum of 3 and 7?

Answer: 10

Explanation:

The sum of 3 and 7:

3 + 7 =10

Question 4.
4 cows are in the barn. 2 more cows join them. How many cows are in the barn now?

Complete the model and the number sentence.
__ cows 4 + 2 = __

Answer:

Number sentence :

4 + 2 = 6

Therefore, the number of cows in the barn = 6

Lesson 3.11 Algebra • Add 3 Numbers

Essential Question
How can you group numbers to add three addends?

Listen and Draw

Listen to the problem. Show two ways to group and add the numbers.

Math Talk
MATHEMATICAL PRACTICES

Apply Describe the two ways you grouped the numbers to add.

Share and Show MATH BOARD

Choose a strategy. Circle two addends to add first. Write the sum. Then find the total sum. Then use a different strategy and add again.

Question 1.

Answer:

Two addends : 6 , 4

Sum : 6 + 4 = 10

Total sum : 6 + 4 + 2 = 12

Question 2.

Answer:

Two addends : 3 , 4

Sum : 3 + 4 = 7

Total sum : 3 + 4 + 4 = 11

Question 3.

Answer:

Two addends : 2 , 5

Sum : 2 + 5 = 7

Total sum : 2 + 5 + 0 = 7

Question 4.

Answer:

Two addends : 5 , 5

Sum : 5 + 5 = 10

Total sum : 5 + 4 + 5 = 14

On Your Own

MATHEMATICAL PRACTICE
Use Repeated Reasoning Choose a strategy. Circle two addends to add first. Write the sum.

Question 5.

Answer:

Two addends : 8 , 2

Sum : 8 + 2 + 2 =12

Question 6.

Answer :

Two addends : 6, 0

Sum : 6 + 0 + 8 = 14

Question 7.

Answer :

Two addends : 3 , 4

Sum : 3 + 4 + 6 = 13

Question 8.

Answer:

Two addends : 2 , 3

Sum : 2 + 3 + 7 = 12

Question 9.

Answer:

Two addends : 7 , 7

Sum : 7 + 7 + 2 = 16

Question 10.

Answer:

Two addends : 1 , 1

Sum : 1 + 9 + 1 = 11

Question 11.

Answer:

Two addends : 4 , 4

Sum : 5 + 4 + 4 = 13

Question 12.

Answer :

Two addends : 5 , 5

Sum: 5 + 5+ 5 = 15

Question 13.
THINK SMARTER
Susan has 7 shells. Kai has 3 shells. Zach has 5 shells. How many shells do they have?
__ + __ + __ + __ = __ shells

Answer: 15

Explanation :

The number of shells Susan has = 7

The number of Shells Kai have = 3

The number of shells Zach have = 5

Total : 7 + 3 + 5 = 15

Therefore, the number of  shells they have = 7+3+5 = 15

THINK SMARTER
Write the missing addends. Add.

Question 14.

Answer:

The possible addend be 0,8 ; 1,7; 2,6; 3,5; 4,4 ; 5,3 ; 6,2 ; 7,1 ; 8,0

The sum of the number sentence is 11

Question 15.

Answer:

Possible addends are : 0,7; 1,6; 2,5; 3,4; 4,3; 5,2; 2,6; 1,7; 7,0.

The sum of number sentence = 10

Problem Solving • Applications

Draw a picture. Write the number sentence.

Question 16.
Maria has 3 cats. Jim has 2 cats. Cheryl has 5 cats. How many cats do they have?
__ + __ + __ = __ cats

Answer: 10

Explanation:

The number of cats Maria have = 3

The number of cats Jim have = 2

The number of cats Cheryl have = 5

Total : 3 + 2 + 5= 10

Therefore, the total number of cats Maria have = 10

+ + =

Question 17.
Tony sees 5 small turtles. He sees 0 medium turtles. He sees 4 big turtles. How many turtles does he see?
__ + __ + __ = __ turtles

Answer:  9

Explanation:

The number of small turtles = 5

The number of medium turtles = 0

The number of big turtles = 4

Total : 5 + 0 + 4 = 9

Therefore, the number of turtles tony have = 9

+ 0 + =

.

Question 18.
GO DEEPER
Kathy sees 13 fish in the tank. 6 fish are gold. The rest are blue or red. How many of each could she see?
__ + __ + 6 = 13 fish

Answer:

The sum of  blue and red fish is 7

Total number of fishes in the tank = 13

Number of gold fishes = 6

Let, the number of blue fishes = 3

the number of red fishes = 4

Total red and blue fishes = 3 + 4 = 7

Number sentence : 3 + 4 + 6 = 14

+ + =

                               

Question 19.
THINK SMARTER
Write two ways to group and add 2 + 3 + 4.

Answer:

2 + 3 + 4 = 9

1. 6 + 3 = 9
2. 2 + 7 = 9

TAKE HOME ACTIVITY
• Have your child look at Exercise 18. Have your child tell you how he or she decided which numbers to use. Have him or her tell you two new numbers that would work.

Algebra • Add 3 Numbers Homework & practice 3.11

Choose a strategy. Circle two addends to add first. Write the sum.

Question 1.

Answer:

Two addends : 7, 3

Sum : 7 + 3 + 3 = 13

Question 2.

Two addends : 2 , 2

Sum : 2 + 2+ 6 = 10

Question 3.

Answer:

Two addends : 6 , 6

Sum : 6 + 6 +3 = 15

Question 4.

Answer:

Two addends : 0 , 8

Total : 2 + 0 + 8 = 10

Problem Solving

Draw a picture. Write the number sentence.

Question 5.
Don has 4 black dogs. Tim has 3 small dogs. Sue has 3 big dogs. How many dogs do they have?
__ + __ + __ = __ dogs

Answer: 10

Explanation :

The number of dogs Don have = 4

The number of dogs Tim have = 3

The number of dogs Sue have = 3

Total : 4 + 3 +3 = 10

Therefore, the number of dogs they have = 10

+ + =

Question 6.
WRITE Math
Use pictures or words to explain how you would find 6 + 4 + 4.

Answer :

6 + 4 + 4 = 14

Lesson Check

Question 1.
What is the sum of 4 + 4 + 2?
__

Answer:

4 + 4 + 2 = 10

Question 2.
Circle two addends to add first. Find the sum. Explain your strategy.

_______________
_______________

Answer:

7 + 3 = 10

Total sum : 7 + 3 + 2 = 12

Spiral Review

Question 3.
Write a doubles plus one fact for the sum of 7.
__ + __ = __

Answer:

A doubles plus one fact for the sum of 7 :

3 + 4 = 7

3 + 3 + 1 = 7

Question 4.
What addition sentence does this model show? Write the number sentence.

__ + __ = __

Answer:

Number sentence  :

8 + 3 = 11

Lesson 3.12 Problem Solving • Use Addition Strategies

Essential Question
How do you solve addition word problems by drawing a picture?

Megan put 8 fish in the tank. Tess put in 2 more fish. Then Bob put in 3 more fish. How many fish are in the tank now?

Unlock the Problem

What do I need to find?

What information do I need to use?
Megan put in 8 fish.
Tess put in 2 fish.
Bob put in 3 fish.

Show how to solve the problem.

__ fish

Answer :

Explanation :

Given,

Megan put in 8 fish.
Tess put in 2 fish.
Bob put in 3 fish.

Total : 8 + 2 + 3 = 13

Therefore, total number of fishes = 13

   + + =

                                                             

 

HOME CONNECTION
• Your child will continue to use this chart throughout the year to help him or her unlock the problem. In this lesson, your child used the strategy draw a picture to solve problems.

Try Another Problem

Draw a picture to solve.

Question 1.
Mark has 9 green toy cars. He has 1 yellow toy car. He also has 5 blue toy cars. How many toy cars does he have?

Answer : 15

Explanation :

The number of green toy cars = 9

The number of yellow toy cars = 1

The number of blue toy cars = 5

Total :

9 + 1 + 5 = 15

Therefore, the total number of toy cars he have now = 15

Math Talk
MATHEMATICAL PRACTICES
Reasoning Explain how using make a ten helps you solve the problem.

Share and Show MATH BOARD

MATHEMATICAL PRACTICE

Write an Equation Draw a picture to solve.

Question 2.
Ken put 5 marbles in a jar. Lou put in 0 marbles. Mae put in 5 marbles. How many marbles did they put in the jar?

Answer: 10

Explanation :

The number of marbles Ken kept in a jar = 5

The number of Lou kept in a jar = 0

The number of marbles Mae kept in jar = 5

Total : 5 + 0 + 5 = 10 marbles

Therefore, there are 10 marbles in the jar.

Question 3.
Ava has 3 kites. Lexi has 3 kites. Fred has 5 kites. How many kites do they have?

Answer : 11

Explanation :

The number of kites Ava have = 3

The number of kites Lexi have = 3

The number of kites Fred have = 5

Total : 3 + 3 + 5 = 11 Kites

Therefore, the number of kites they have = 11

 

Question 4.
Al got 8 books at the library. Ryan got 7 books. Dee got 1 book. How many books do they have?

Answer : 16

Explanation :

The number of books Al got from library = 8

The number of books Ryan got from library = 7

The number of books Dee got from library = 1

Total : 8 + 7 + 1 = 16 books

Therefore, the number of books they have = 16

Question 5.
Pete sends 4 letters. Then he sends 3 more letters. Then he sends 2 more letters. How many letters did Pete send?

Answer: 9

Explanation :

The number of letters Pete sends = 4

The number of letters he sends more = 3

Then also the number of letters he sends more = 2

Total : 4 + 3 + 2 = 9 letters

Therefore, the number of letters Pete sends = 9

On Your Own WRITE Math

Solve. Draw or write to show your work.

Question 6.
Kevin has 15 baseball cards. He gives away 8 baseball cards. How many baseball cards does he have?

__ baseball cards

Answer : 7

Explanation :

Total number of basketball cards = 15

The number of cards he gives away = 8

Now, the number basketball he have now =

15 – 8 = 7

Therefore, the number of cars he have now = 7

 

Question 7.
There are 14 pencils. Haley has 6 pencils. Mac has 4 pencils. Sid has some pencils. How many pencils does Sid have?

___ pencils

Answer: 4

Explanation :

Total number of pencils = 14

The number of pencils Haley have = 6

The number of pencils Mac have = 4

Total : 6 + 4 = 10

The number of pencils Sid have = 14 – 10 = 4

Therefore, Sid have 4 pencils.

 

Question 8.
GO DEEPER
12 marbles are in a bag. Shelly takes 3 marbles. Dan puts in 4. How many marbles are in the bag now?
__ marbles

Answer:

Explanation :

The total number of marbles in a bag = 12

The number of marbles Shelly takes out =

1 2 – 3 = 9

The number of marbles Dan puts in = 4

9 + 4 = 13

Therefore, total number of marbles in the bag = 13

Question 9.
THINK SMARTER
Eric has 4 pencils. Sandy gives Eric 3 pencils. Tracy gives Eric 5 more pencils. How many pencils does Eric have in all?
Eric has ☐ pencils in all.

Answer: 12

Explanation :

The number of pencils Eric have = 4

The umber of pencils Sandy gives Eric  = 3

The number of pencils Tracy gives Eric  = 5

Total : 4 + 3 + 5 = 12

Therefore, the total number pencils Eric have = 12.

 

TAKE HOME ACTIVITY
• Ask your child to look at Exercise 8 and tell how he or she found the answer.

Problem Solving • Use Addition Strategies Homework & Practice 3.12

Draw a picture to solve.

Question 1.
Franco has 5 crayons. He gets 8 more crayons. Then he gets 2 more crayons. How many crayons does he have now?

Answer : 15

Explanation :

The number of crayons Franco have = 5

The number of crayons he gets more = 8

The number of crayons he gets more = 2

Total number of crayons = 5 + 8 + 2 = 15

Therefore, the number of crayons he have now = 15

Question 2.
Jackson has 6 blocks. He gets 5 more blocks. Then he gets 3 more blocks. How many blocks does he have now?

Answer : 14

The number of blocks Jackson have = 6

The number of blocks Jackson gets more = 5 + 3 = 8

Total : 6 + 8 = 14

Therefore, Jackson have 14 blocks.

Question 3.
Ava has 7 gifts. Then he gets 2 more gifts. Then he gets 3 more gifts. How many gifts does Ava have now?

Answer : 12

Explanation :

The number of gifts Ava have = 7

The number of gifts Ava gets more = 2 + 3 = 5

Total : 7 + 5 = 12

Therefore, Ava have 12 gifts.

Question 4.
WRITE Math
Draw a picture to show how you would solve this problem.
Jeb has 4 large rocks. He has 4 medium rocks. He has 7 small rocks. How many rocks does Jeb have?

Answer: 15

Explanation :

The number of large rocks Jeb have = 4

The number of medium rocks Jeb have = 4

The number of small rocks Jeb have = 7

Total : 4 + 4 + 7 = 15

Therefore, Jeb have 15 rocks.

Lesson Check

Question 1.
Lila has 3 gray stones. She has 4 black stones. She also has 7 white stones. How many stones does she have? Write the number sentence.

Answer:

The total number of stones = 14

Number sentence: 3 + 4 + 7 = 14

Explanation :

The number of gray stones = 3

The number of black stones = 4

The number of white stones = 7

Total :

3 + 4 + 7 = 14

 

Question 2.
Patrick has 3 red stickers, 6 pink stickers, and 8 green stickers. How many stickers does Patrick have? Write the number sentence.

Answer:

The Total number of stickers = 17

Number sentence: 3 + 6 + 8 = 17

Explanation:

The number of red stickers = 3

The number of pink stickers = 6

The number of green stickers = 8

Total: 3 + 6 + 8 = 17

Spiral Review

Question 3.
What is the sum of 2 + 4 or 4 + 2? Write the number.
____

Answer: 6

Explanation:

The sum of of 2+4 or 4+2 = 6

Question 4.
There are 6 black pens. There are 3 blue pens. How many pens are there? Write the number.

Answer:

The total number of pens = 9

Number sentence : 6 + 3 =9

Explanation:

The number of black pens = 6

The number of blue pens = 3

Total : 6 + 3 = 9

 

Addition Strategies Chapter 3 Review/Test

Question 1.
Write the addends in a different order.
5 + 4 = 9
__ + __ = __

Answer:

The addition sentence with the addends in a different order =

4 + 5 = 9

Question 2.
Count on from 4. Write the number that shows 1 more.
__

Answer: 5

Question 3.
The cubes show a doubles fact. Choose the doubles fact and the sum.

Answer:

The addition sentence with doubles fact :

5 + 5 = 10

Therefore, The sum of cubes = 10

Question 4.
THINK SMARTER
There are 3 red leaves. There are 4 yellow leaves. How many leaves in all? Use a double to add. Write the missing numbers.

Answer:

3 + 4 = 3 + 3 +1

So, 3 + 4 = 7

Question 5.
Choose all the doubles facts that can help you solve 8 + 7.

Answer:

1.   7 + 7 = 14
2.   8 + 8 = 14

Question 6.
GO DEEPER
Write a count on 2 fact to show a sum of 10. Then write a doubles fact to show a sum of 10.

Answer:

Addition sentence on 2 fact to show a sum of 10

8 + 2 = 10

Addition sentence with doubles fact to show a sum of 10.

5 + 5 = 10

Question 7.
Match the models to the number sentences.

Answer :

Question 8.
The model shows 8 + 5 = 13.
Write the 10 fact that has the same sum.

Answer: 10 + 3 = 13

Explanation:

Given,

The model shows 8 + 5 = 13.

Addition sentence with 10 fact that has same sum =

10 + 3 = 13

Question 9.
Does the addition show how to make a ten to add? Choose Yes or No.

Answer:

1.  7 + 3 + 2 –  Yes

2.   7 + 5 +5  –  Yes

3.  5 + 4 + 7 –   No

Question 10.
Look at the . Complete the addition sentence to show the sum. Choose the missing number and the sum.

Answer:

2 + 3 + 4 = 9

Explanation :

The number of red cubes  = 2

The number of blue cubes = 3

The number of yellow cubes = 3

Now, The addition sentence :

2 + 3 + 4 = 9

Total sum of cubes = 9

 

Question 11.
Write two ways to group and add 4 + 2 + 5.
__ + __ = __
__ + __ = __

Answer:

4 + 2 + 5 = 11

The two ways are:

6 + 5 = 11

8 + 3 = 11

Question 12.
Beth sees 4 red birds. She sees 2 yellow birds. She sees 4 blue birds. Draw a picture of the birds.

Answer:

4 + 2 + 4 = 10

Beth sees = 10 birds

 

 

 

 

 

Go Math Grade 2 Chapter 7 Answer Key Money and Time Concepts

Money and Time Show What You Know

Order Numbers to 100 on a Number Line
Write the number that is just before, between, or just after.
Question 1.

Answer:

57

Question 2.

Answer:

25

Skip Count by Fives and Tens
Question 3.
Count by fives. Write how many in all.

_________ _____ paints in all
Answer:

5,10,15,20,25

5+5+5+5+5= 25

So, there are 25 paints in all

Question 4.
Count by tens. Write how many in all.

________ ____ paints in all
Answer:

10, 20, 30, 40, 50

10+10+10+10+10=50

So, there are 50 paints in all

Time to the Hour
Write the time shown on the clock.
Question 5.

Answer: 11’o clock

Explanation:

The hours hand is on 11 and the minutes hand is on  12.

So, the time is 11:00

Question 6.

Answer: 5’o clock

Explanation :

The hours hand is on the 5 and the minutes hand is on 12.

So, the time is 5:00

 

Money and Time Vocabulary Builder

Visualize It
Fill in the graphic organizer.
Show ways to count on.

Answer:

Understand Vocabulary
Write the missing numbers in each counting pattern.
Question 1.
Count by ones. 40, ____, ____, ____, 44, ___, 46, ____
Answer:

40, 41, 42, 43, 44, 45, 46, 47

Question 2.
Count by fives. 10, 15, ___, ___, ___, 35, ___, ____
Answer:

10, 15, 20, 25, 30, 35, 40, 45.

Question 3.
Count by tens. 20, ___, ___, 50, ___, ____, 80, ___
Answer:

20, 30, 40, 50, 60, 70, 80, 90.

Money and Time Game 5 and 10 Count

Materials

Play with a partner.

1. Spin the pointer on for your starting number. Put your cube on that number.
2. Spin the pointer. Count on by that number two times.
3. Take turns. The first player to get to 100 wins. Play again.
   

Money and Time Vocabulary Cards

Money and Time Vocabulary Game

DIRECTIONS 2 to 4 players. Take turns to play.

• To take a turn, toss the numbered cube. Move that many spaces
• Follow the directions for the space you land.
• First player to reach FINISH wins.

MATERIALS 1 connecting cube per player

• 1 number cube
• 1 set of clue cards
  
  

The Write Way
Reflect
Choose one idea. Write about it in the space below.

• Write and draw to explain the following amount as if you were talking to a young child. Use another sheet of paper for your drawing.
  $1.36
• What time is it now? Use at least three of these terms in your answer.
  A.M. midnight minute noon P.M. quarter past
  Write at least three things you know about money.
  _________________________
  _________________________

Lesson 7.1 Dimes, Nickels, and Pennies

Essential Question How do you find the total value of a group of dimes, nickels, and pennies?

Listen and Draw

Sort the coins. Then draw the coins.

Answer:

– Dime = 10 cents

– Nickle = 5 cents

– penny = 1 cent

 

MATHEMATICAL PRACTICES

A nickel has the same value as how many pennies? Explain.
Answer:5

1 nickel = 5 cents

1 penny = 1 cents

Which means

1+1+1+1+1 = 5

5 cents = 5 pennies

So, A nickel has the same value a 5 pennies.

Share and Show

Count on to find the total value.
Question 1.

Answer: 26¢

Explanation:

1 nickel = 5 cents

Which means, 4 nickels = 5+5+5+5= 20 cents

5 cents and 1 cent

Total value of coins = 20+5+1=26 ¢

Question 2.

Answer:35¢

Explanation:

1 dime = 10 cents

Which means , 2 dimes = 20 cents

1 nickel = 5 cents

Which means, 2 nickels = 10cents

and 5 cents

Therefore, Total value of coins = 20+10+5=35¢

On Your Own

Count on to find the total value.
Question 3.

Answer:60¢

Explanation:

1 dime = 10 cents

Which means , 6 dimes = 10+10+10+10+10+10=60¢

Therefore, the total value is 60¢.

Question 4.

Answer: 30¢

Explanation:

1 nickel = 5 cents

Which means 5 nickels = 5+5+5+5+5= 25¢

and 5 cents

Total = 25¢+5¢

Therefore, the total value is 30¢

 

Question 5.

Answer:45¢

Explanation:

1dime = 10 cents

Which means , 3 dimes = 30 cents

1 nickels = 5 cents

Which means , 2 nickels = 10 cents

and 5 cents

Total : 30+10+5 = 45

Therefore, the total value = 45¢

Question 6.

Answer: 18¢

Explanation:

1 nickel = 5 cents

Which means , 2 nickels = 10cents

3 pennies = 3 cents and 5 cents

Total : 10+3+5 = 18

Therefore, the total value is 18¢

Question 7.
THINK SMARTER
Maggie had 5 nickels. She gave 2 nickels to her sister. What is the total value of the nickels that Maggie has now?

Answer: 3 nickels

Explanation:

Given , Maggie had 5 nickels

The number of nickels she gave to her sister =2

Leftover nickel coins = 5-2 = 3

1 nickel = 5 cents

Which means , 3 nickels = 5+5+5= 15

The total value of the nickels that Maggie has now =15¢

Problem Solving • Applications

Solve. Write or draw to explain.
Question 8.
MATHEMATICAL PRACTICE Analyze
Jackson has 4 pennies and 3 dimes. How much money does Jackson have?
Answer: 34¢

Explanation :

4 pennies = 4 cents

1 dime = 10 cents

Which means , 3 dimes = 30 cents

Total : 4 +30 = 34

The total money Jackson have = 34¢

Question 9.
MATHEMATICAL PRACTICE
Use Models Draw two ways to show 25¢. You can use dimes, nickels, and pennies.
Answer:

25cents can be shown as

2 dimes , 1 nickel

1 dime = 10 cents

Which means , 2 dimes = 10+10= 20

and 1 nickel = 5 cents

Total : 20+5 = 25 ¢

Another way :

25 cents can be shown as 1 dime 2 nickel and 5 pennies

1 dime = 10 cents

1 nickel = 5 cents

Which means , 2 nickels= 5+5= 10

5 pennies = 5 cents

Total value : 10+10+5 = 25

Question 10.
THINK SMARTER
Sue has 40¢. Circle coins to show this amount.

Answer:

 

TAKE HOME ACTIVITY • Draw pictures of five coins, using dimes, nickels, and pennies. Ask your child to find the total value.

Dimes, Nickels, and Pennies Homework & Practice 7.1

Count on to find the total value.
Question 1.

Answer: 24 cents

Explanation :

1 dime = 10 cents

Which means , 2 dimes = 20 cents

and 4 cents

Total : 20+4 = 24

Therefore, the total value = 24cents

Question 2.

Answer: 13 cents

Explanation :

2 five cents and 3 cents

5+5+3 = 13 cents

Therefore, the total value of coins = 13 cents

Question 3.

Answer:28 cents

Explanation:

1 dime = 10 cents

Which means, 2 dimes = 20 cents

1 nickel = 5 cents

and 3 cents

Total : 20+5+3 = 28

Therefore, the total value of coins is 28 cents

Problem Solving
Solve. Write or draw to explain.
Question 4.
Aaron has 5 dimes and 2 nickels. How much money does Aaron have?
________
Answer:60 cents

Explanation :

1 dime = 10 cents

Which means, 5 dimes = 50 cents

1 nickel = 5 cents

Which means , 2 nickels = 10 cents

Total : 50+10 = 60 cents

Therefore, the total value of coins = 60 cents

 

Question 5.
WRITE
Draw three dimes, 1 nickel, and 2 pennies. Describe how to count on to find the total value of this group of coins.
_____________
Answer:37 cents

Explanation:

1 dime = 10 cents

Which means , 3 dimes = 10+10+10= 30 cents

1 nickel = 5 cents

and 2 pennies = 2 cents

Total value of coins = 30+5+2 = 37 cents

 

Lesson Check
Question 1.
What is the total value of this group of coins?
______
Answer:21 cents

Explanation :

1 dime = 10 cents

2 five cents = 5+5= 10

and 1 cent

Total value of coins = 10+10+1 = 21 ¢

Spiral Review
Question 2.
Hayden is building toy cars. Each car needs 4 wheels. How many wheels will Hayden use to build 3 toy cars?
______ wheels
Answer:

Total number of toy cars = 3

Given that, each car needs 4 wheels

Now, The number of wheels Hayden use to 3 toy cars =

4+4+4 = 12

Therefore , Hayden will use 12 wheels to build 3 toy cars.

Question 3.
What is the value of the underlined digit?
429 _____
Answer:

Four hundred twenty nine

The underlined digit is 4

The value of 4 is hundred

Question 4.
Lillian is counting by fives. What numbers did she say next?
40, ___, ____, ___, ____
Answer:

40, 45, 50, 55, 60.

Question 5.
Sophie has 12 grapes in her lunch bag. She shared 7 grapes with her sister. How many grapes does she have?
12 – 7 = ______
Answer:

Given , the number of grapes in her lunch bag = 12

The number grapes she shared =7

12 – 7 = 5

Therefore, the number of games she have = 5

Lesson 7.2 Quarters

Essential Question How do you find the total value of a group of coins?

Listen and Draw

Sort the coins. Then draw the coins.

MATHEMATICAL PRACTICES
Describe how the value of a quarter is greater than the value of a dime.
Answer:

1 quarter = 25 cents

1 dime = 10 cents

The value of a quarter is 15 cents greater than the value of a dime

Share and Show

Count on to find the total value.
Question 1.

Answer: 50 cents

Explanation:

1 quarter = 25 cents

Which means , 2 quarters = 25+25= 50

Therefore , the total value of coins = 50 ¢

Question 2.

Answer:86 cents

Explanation:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

1 dime = 10 cents and

1 penny = 1 cent

Total : 75+10+1 = 86

Therefore ,the total value of the coins = 86 ¢

 

Question 3.

Answer: 57¢

Explanation:

1 quarter =  25 cents

Which means , 2 quarters = 25 +25 = 50

1 nickel = 5 cents and

2 pennies = 2 cents

Total : 50+5+2 = 57

Therefore, the total value of the coins = 57¢

On Your Own

Count on to find the total value.
Question 4.

Answer: 100 ¢

Explanation:

1 quarter = 25 cents

4quarters = 25+25+25+25= 100

Therefore, the total value of coins = 100¢

Question 5.

Answer: 65¢

Explanation :

1 quarter = 25 cents

1 dime = 10 cents

Which mean , 4 dimes = 10+10+10+10= 40

Total : 25+40= 65

Therefore, the total value of the coins = 65¢

Question 6.

Answer: 70¢

Explanation :

1 quarter = 25 cents

Which means , 2 quarters = 25+25 = 50

1 nickel = 5 cents

Which means , 4 nickels = 5+5+5+5+ = 20

Total : 50+20= 70

Therefore, the total value of the coins = 70¢

Question 7.

Answer: 38¢

Explanation :

1 quarter = 25 cents

1 nickel = 5 cents

Which means , 2 nickels= 5+5+ = 10

3 pennies = 3 cents

Total : 25+10+3 = 38

Therefore, the value of coins = 38¢

Draw and label a coin to solve.
Question 8.
THINK SMARTER
Ed’s coin has the same value as a group of 5 pennies and 4 nickels. What is his coin?

Answer: Quarter coin

Explanation :

1 penny = 1 cent

Which means , 5 pennies = 5 cents

1 nickel = 5 cents

Which means, 4 nickels = 5+5+5+5= 20

Total : 5 +20

We know that , 1 quarter = 25 cents

Therefore, His coin is a quarter coin .

Problem Solving • Applications

MATHEMATICAL PRACTICE Make Connections
Read the clue. Choose the name of a coin from the box to answer the question.

Question 9.
I have the same value as 5 pennies.
What coin am I?
________
Answer:

5 pennies =5 cents

We know that , 1 nickel = 5 cents

So, I am a nickel coin.

Question 10.
I have the same value as 25 pennies.
What coin am I?
_________
Answer:

1 penny = 1 cent

25 pennies = 2 cents

We know that , 1 quarter = 25 cents

Therefore , I am a quarter coin .

Question 11.
I have the same value as 2 nickels.
What coin am I?
_________
Answer:

1 nickel = 5 cents

Which means 2 nickels = 5+5 = 10

We know that 1 dime = 10 cents

Therefore, I am a dime coin.

Question 12.
I have the same value as a group of 5 nickels.
What coin am I?
_________
Answer: Quarter

1 nickel = 5 cents

Which means, 5 nickels = 5+5+5+5+5 =25 cents

1 quarter = 25 cents

So , I am a quarter coin .

Question 13.
THINK SMARTER
Tom gives these coins to his brother.

Answer: 65 cents

Explanation:

1 quarter = 25 cents

Which means , 2 quarters = 25+25 = 50

3 dimes = 5+5+5= 15

Total: 50+15 = 65 cents

Therefore, tom gives his brother 65 cents

TAKE HOME ACTIVITY • Have your child draw two quarters, two dimes, and two nickels, and then find the total value.

Quarters Homework & Practice 7.2

Count on to find the total value.
Question 1.

Answer:55¢

Explanation:

1 quarter = 25 cents

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

1 nickel = 5 cents

Which means, 2 nickels = 5+5 =10

Total :

25+20+10 = 55

Therefore, the value of coins = 55¢

Question 2.

Answer: 66¢

Explanation :

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents

Which means, 3 nickels = 5+5+5=15

1 penny = 1 cent

Total: 50+15+1=66

Therefore, the total value of coins = 66¢

Problem Solving
Read the clue. Choose the name of a coin from the box to answer the question.

Question 3.
I have the same value as a group of 2 dimes and 1 nickel. What coin am I?
_________
Answer: Quarter

Explanation:

1 dime = 10 cents

Which means , 2 dimes = 20 cents

1 nickel = 5 cents

Total value of coins = 20 +5 = 25 cents

We know that , 1 quarter = 25 cents

So , I am a quarter coin.

Question 4.
WRITE
Draw 1 quarter, 1 dime, and 4 pennies. Describe how to count to find the total value of this group of coins.
Answer: 39 cents

Explanation :

1 quarter = 25 cents

1 dime = 10 cents

4 pennies = 4 cents

Total value of coins = 25+10+4 = 39

Lesson Check
Question 1.
What is the total value of this group of coins?

_________
Answer: 61¢

Explanation:

1 quarter = 25 cents

Which means, 2 quarters = 25+25 =50

1 nickel = 5 cents

Which means, 2 nickels = 5+5= 10

1 penny = 1 cent

Total : 50+10+1

Therefore, the total value of coins = 61¢

Spiral Review
Question 2.
Circle the odd number.
8 14 17 22
Answer:

8 , 14 are the odd numbers

Question 3.
Kai scored 4 points and Gail scored 7 points. How many points did they score altogether?
4 + 7 = ______ points
Answer:

Given,

The points scored by kai = 4

The points scored by Gail = 7

The points that they score altogether = 4+7 = 11 points.

Question 4.
There were 382 chairs in the music hall. Write a number greater than 382.
_______
Answer: 383

383 is greater than 382.

Question 5.
Write the number 61 using words.
________
Answer: sixty one

Lesson 7.3 Count Collections

Essential Question How do you order coins to help find the total value of a group of coins?

Listen and Draw

Line up the coins from greatest value to least value. Then draw the coins in that order.

>>>

Quarter> dime> nickel > penny

MATHEMATICAL PRACTICES
Describe how the values of the different kinds of coins compare.
Answer:

The values of the coins are compared with cents

1 quarter = 25 cents

1 dime = 10 cents

1 nickel= 5 cents and

1 penny = 1 cent

 

Model and Draw

Order the coins from greatest value to least value.
Then find the total value.

Answer:

1 quarter = 25 cents

Which means, 2 quarters = 25 +25 = 50

1 dime = 10 cents

and 2 pennies = 2 cents

Total: 50 + 10 +2 = 32

Therefore, the total value of coins 62¢

Share and Show

Draw and label the coins from greatest to least value. Find the total value.
Question 1.

_______
Answer:

1 quarter = 25 cents

1 nickel = 5 cents

Which means , 2 nickels = 5+5 = 10

2 pennies = 2 cents

Total : 25 +10+2 = 37

Therefore, the total value of the coins = 37 ¢

Question 2.

_______
Answer:

1 quarter = 25 cents

1 dime = 10 cents

Which means , 2 dimes = 20 cents

1 nickel = 5 cents

and 1 penny = 1 cent

Total : 25+20+5+1 = 51

Therefore ,  the total value of coins = 51¢

Question 3.

_______
Answer:

1quarter = 25 cents

Which means ,2 quarters = 25+25 = 50

1 dime = 10 cents and

1 nickel = 5 cents

Total: 50+10+5 =65

Therefore the total value of coins = 65¢

On Your Own

Draw and label the coins from greatest to least value. Find the total value.
Question 4.

______
Answer:

1 quarter = 25 cents

1 dime = 10 cents

Which means , 3 dimes = 10+10+10= 30

Total :25+30 = 55

Therefore, the total value of coins  55¢

Question 5.

_______
Answer:

1 quarter = 25 cents

Which means ,2 quarters = 25+25 = 50 cents

1 dime = 10 cents

and 2 pennies

Total : 50+10+2 = 62

Therefore, the total value of coins = 62¢

Question 6.

_______
Answer:

1 quarter = 25 cents

1 dime = 10 cents

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

Total : 25+10+10 =45 cents

Therefore, the total value of coins =45¢

Question 7.

_______
Answer:

1 quarter = 25 cents

Which means, 2 quarters = 25+25= 50

1 dime = 10 cents

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

Total : 50+10+10 = 70

Therefore, the total value of the coins = 70¢

Question 8.
GO DEEPER
Andy has only quarters and nickels. The total value of his coins is 75¢. What coins could Andy have?
______ quarters _____ nickels
Answer:

75¢ can be shown by using only quarters and nickels as 2 quarters 5 nickels

Explanation :

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50 cents

1 nickel = 5 cents

Which means , 5 nickels = 5+5+5+5+5= 25

Total : 50+25 = 75 ¢

Therefore, Andy has 2 quarters and 5 nickels .

Problem Solving • Applications

Solve. Write or draw to explain.
Question 9.
THINK SMARTER
Paulo had these coins.

He spent 1 quarter. How much money does he have now?
______
Answer: 21¢

Explanation :

Total value of coins = 46¢

After spending a quarter

1 quarter = 25 cents

1 nickel = 5 cents

Which means, 4 nickels = 5+5+5+5= 20 cents

and 1 penny = 1 cent

46 – 25 = 21¢

Therefore, the leftover money = 21¢

Question 10.
Rachel has 2 quarters, 3 dimes, and 1 nickel in her bank. How much money is in Rachel’s bank?
_______
Answer: 85¢

Explanation:;

1 quarter = 25 cents

Which means 2 quarters =25+25 =50

1 dime = 10 cents

Which means, 3 dimes = 10+10+10 = 30

1 nickel = 5 cents

Total : 50+30+5 = 85¢

Therefore, the amount Rachels have in his bank = 85¢

Question 11.
GO DEEPER
Blake has only nickels and dimes. He has double the number of nickels as dimes. The total value of his coins is 60¢. What coins does Blake have?
______ nickels _____ dimes
Answer: 6 nickels and 3 dimes

Explanation :

Given , Rachel has double the number of nickels and dimes

1 nickel = 5 cents

Which means, 6 nickels = 5+5+5+5+5+5= 30 cents

1 dime = 10 cents

Which means , 3 dimes = 10+10+10 = 30 cents

Total : 30+30= 60¢

Therefore , Rachel has 3 dimes and 6 nickels .

Question 12.
THINK SMARTER
Malik has these coins in his pocket. What is the total value of the coins?

Answer: 50¢

Explanation :

1 dime = 10 cents

Which means, 4 dimes = 10+10+10+10 = 40 cents

1 nickel = 5 cents

Which means , 2 nickels = 5+5 = 10 cents

Total : 40+10 = 50

Therefore , the total value of coins Malik had = 50¢

TAKE HOME ACTIVITY • Have your child draw and label coins with a total value of 32¢.

Count Collections Homework & Practice 7.3

Draw and label the coins from greatest to least value. Find the total value.
Question 1.

________
Answer: 22¢

1 dime = 10 cents

1 nickel = 5 cents Which means, 2 nickels = 5+5 = 10 cents and

2 pennies = 2 cents

Total : 10+10+2 = 22

Therefore, the total value f the coins = 22¢

 

Question 2.

_________
Answer: 75¢

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

and 1 nickel = 5 cents

Total : 50+20+5 = 75

Therefore, total value of the coins = 75¢

Problem Solving
Solve. Write or draw to explain.
Question 3.
Rebecca has these coins. She spends 1 quarter. How much money does she have left?

Answer:

Firstly, Rebecca has 2 quarters , 1 dime, 1 nickel and 1 penny

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

1 nickel = 5 cents and

1 penny = 1 cent

Total : 50+10+5+1 = 66¢

Given that,

she spends 1 quarter which means, 25 cents

Now, 66¢ – 25¢ = 41¢

Therefore, the leftover money is 41¢

Question 4.
WRITE
Draw 2 dimes, 1 nickel, and 2 quarters. Describe how to order and then count to find the total value of the coins.
_______
Answer:

Explanation:

We have to order coins on the basis of cent values

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50 cents

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20 cents

and 1 nickel = 5 cents

Total : 50+20+5 = 75¢

Therefore, the total value of the coins = 75¢

Lesson Check
Question 1.
What is the total value of this group of coins?

_______
Answer:

Explanation:

1 quarter = 25 cents

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20 cents

and 2 pennies = 2 cents

Total : 25 + 20 +2 = 47

Therefore, the total value of the coins is 47¢

 

Spiral Review
Question 2.
What number is 100 more than 562?
_____
Answer:

The number 100 more than 562 is 662

Question 3.
Describe 58 as a sum of tens and ones.
______
Answer: 58 can be shown in sum of tens and once as

50 + 8  = 58

Question 4.
Pete helps his grandmother gather pecans. He finds 6 pecans on his left and 3 on his right. How many pecans did Pete find altogether?
6 + 3 = _____ pecans
Answer:

The number of pecans Pete finds on his left side = 6

The number of Pecans Pete finds on his right side = 3

Total number of Pecans Pete find altogether =

6 + 3 = 9

Therefore, total number of pecans = 9

Question 5.
What number do the blocks show?

______
Answer:

The first and second figures have 100 blocks

The 3 single line contains 10+10+10 = 30 blocks

and 4 blocks

Total number of blocks = 100+100+10+10+10+1+1+1+1 = 234

Therefore, Total number of blocks = 234

Lesson 7.4 Show Amounts in Two Ways

Essential Question How do you choose coins to show a money amount in different ways?

Listen and Draw

Show the amount with coins. Draw the coins.
Write the amount.
Answer: 26¢

1 quarter = 25 cents and 1 penny = 1 cent

Total value = 26¢

Another way:

26¢ can also be shown as 2 dimes 1 nickel and 1 penny

1 dime = 10 cents

Which means , 2 dimes = 10+10 = 20

1 nickel = 5 cents

and 1 penny = 1 cent

Total : 20+1 = 26 ¢

 

MATHEMATICAL PRACTICES
Can you show 10¢ with 3 coins? Explain how you know.
Answer:

No, it is not possible to show 10¢ with 3 coins because

Share and Show

Use coins. Show the amount in two ways.
Draw and label the coins.
Question 1.
61¢
Answer:

61 ¢ can be shown as 2 quarters 1 dime and 1 penny

1 quarter = 25 cents

Which means, 2 quarters = 25+25= 50

1  dime = 10 cents

and 1 penny = 1 cent

Total : 50+10+1= 61¢

Another way:

61¢ can also be shown as 6 dimes and 1 penny

1 dime = 10 cents

and 6 dimes = 10+10+10+10+10+10 = 60

and 1 penny = 1 cent

Total : 60+1 = 61¢

Question 2.
36¢
Answer:

36 cents be shown as 3 dimes 1 nickel and 1 penny

1 dime = 10 cents

Which means, 3 dimes = 10+10+10

1 nickel = 5 cents

and 1 penny = 1 cent

Total : 30+5+1 = 36¢

Another way :

36¢ can also be shown as 1 quarter 1 dime and 1 penny

1 quarter = 25 cents

1 dime = 10 cents and 1 penny = 1 cent

Total : 25+10+1 = 36¢

 

On Your Own

Use coins. Show the amount in two ways.
Draw and label the coins.
Question 3.
55¢
Answer:

55 cents can be shown as 2 quarters and 1 nickel

1 quarter = 25 cents

Which means, 25+25 = 50 cents

and 1 nickel = 5 cents

Total : 50+5 = 55 cents

Another way:

55 cents can also be shown as 5 dimes and 1 nickel

1 dime = 10 cents

Which means, 5 dimes = 10+10+10+10+10 = 50

and 1 nickel = 5 cents

Total : 50+5 = 55

Question 4.
90¢
Answer:

90 cents can be shown as 3 quarters 1 dime and 1 nickel

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

1 dime = 10 cents

and 1 nickel = 5 cents

Total : 75+10+5 = 90

Another way:

90 can also be shown as 2 quarters and 4 dimes

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

and 4 dimes = 10+10+10+10 = 40

Total: 50+40 = 90 cents

Question 5.
75¢
Answer:

75¢ can be shown as 3 quarters

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75 cents

Another way :

75 cents can also be shown as 2 quarters 2 dimes and 1 nickel

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50 cents

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

and 1 nickel = 5 cents

Total: 50+20+5 = 75 cents

 

Question 6.
THINK SMARTER
Teresa has 42¢. She has no dimes. Draw to show what coins she might have.

Answer:

42¢ can be shown as 1 quarter 3 nickels and 2 pennies

1 quarter = 25 cents

1 nickel = 5 cents

Which means , 3 nickels = 15 cents

2 pennies = 2 cents

Total value of coins = 25 +15+ 2 = 42

Problem Solving • Applications

MATHEMATICAL PRACTICE Model with Mathematics
Use coins to solve.
Question 7.
Lee buys a pen for 50¢. Draw coins to show two different ways to pay 50¢.
Answer:

50 cents can be shown as:

2 quarters

1 quarter = 25cents

Which means , 2 quarters = 25 +25 = 50 ¢

Another way :

50 cents can be shown as 5 dimes

1 dime = 10 cents

Which means ,

5 dimes = 10+10+10+10+10 = 50

Question 8.
MATHEMATICAL PRACTICE Make Sense of Problems
Delia used 4 coins to buy a book for 40¢. Draw coins to show two ways to pay 40¢ with 4 coins.
Answer:

40¢ can be shown as 4 dimes

1 dime = 10 cents

Which means ,

4 dimes = 10+10+10+10 = 40

Another way :

40 cents can also be shown in 4 coins as 1 quarter 3 nickel

1 quarter = 25 cents

1 nickel = 5 cents

Which means ,

3 nickels = 15 cents

Total value = 25 +15 = 40 cents

Question 9.
THINK SMARTER
Fill in the bubble next to all the groups of coins with a total value of 30¢.

Answer:

2 nickels and 2 dimes

1 nickel = 5 cents

Which means , 2 nickels = 5+5 = 10cents

1 dime =10 cents

Which means , 2 dimes = 10+10 = 20 cents

Total value = 10 +20 = 30 ¢.

 

TAKE HOME ACTIVITY • With your child, take turns drawing different collections of coins to show 57¢.

Show Amounts in Two Ways Homework & Practice 7.4

Use coins. Show the amounts in two ways.
Draw and label the coins.
Question 1.
39¢
Answer:

39 cents be shown as 1 quarter 1 dime 4 pennies .

1 quarter = 25 cents

1 dime = 10 cents

4 pennies = 4 cents

Total value = 25+10+4 = 39 cents

 

Another way :

39 cents can be shown as 3 dimes , 1nickel and 4 pennies

1 dime = 10 cents

Which means ,

3 dimes = 10 +10+10= 30

1 nickel = 5 cents

4 pennies = 4 cents

Total value = 30+5+4 = 39 cents

Question 2.
70¢
Answer:

70 cents can be shown as 2 quarters and 2 dimes

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

Total : 50+20= 70 cents

Another way:

70 cents can also be shown as 1 quarter 4 dimes and 1 nickel

1 quarter = 25 cents

1 dime = 10 cents

Which means, 4 dimes = 10+10+10+10 = 40 cents

and 1 nickel = 5 cents

Total : 25 + 40 + 5 = 70 cents

Problem Solving
Question 3.
Madeline uses fewer than 5 coins to pay 60¢. Draw coins to show one way she could pay 60¢.
Answer:

60¢ can be shown in fewer than 5 coins 2 quarters and 1 dime

1 quarter = 25 cents

Which means, 2 quarters = 25+25  50

and 1 dime = 10 cents

Total : 50 + 10 = 60¢

Question 4.
WRITE
Draw coins in two ways to show 57¢. Describe how to choose the coins for each way.
Answer:

57 ¢ can be shown as 2 quarters 1 nickel and  2 pennies

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents

and 2 pennies = 2 cents

Total : 50+5+2 = 57 ¢

Another way :

57 cents can also be shown as 5 dimes, 1 nickel and 2 pennies

1 dime = 10 cents

Which means, 5 dimes = 10+10+10+10+10 = 50

1 nickel = 5 cents and

2 pennies = 2 cents

Lesson Check
Question 1.
Circle the group of coins that has the same total value.

 

Answer:

 

 

Spiral Review
Question 2.
Write the number 31 as a sum of tens and ones.
2 tens ____ ones
Answer:

The number 31 can be shown as a sum of tens and once as

3 tens and 1 once or 30+1 = 31

Question 3.
Write 13 tens as a sum of hundreds and tens.
_____ hundreds ______ tens

Answer: 13 x 10 = 130

can be written as 100+30

1 hundreds and 3 tens

Question 4.
What is the value of the underlined digit?
28 _____
Answer: The value of underlined digit is once

The underlined digit in once place is 8

Question 5.
Baylie’s softball team scored 5 runs in the first inning and 6 runs in the second inning. How many runs did her team score?
5 + 6 = ______ runs
Answer:

5+6 = 11

Therefore, the total number of runs her team score = 11

Lesson 7.5 One Dollar

Essential Question How can you show the value of one dollar with coins?

Listen and Draw

Draw the coins. Write the total value.
________
Answer:

$1 is equal to 100 cents

100¢ can be shown as 3 quarters 2 dimes and 1 nickel

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75 ¢

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20¢

and 1 nickel = 5 cents

Total : 75+20+5 = 100¢

Therefore, 3 quarters , 2 dimes and 1 nickel have the value of $1.00

MATHEMATICAL PRACTICES
How many pennies have the same value as 80¢? Explain.
Answer: 80

Explanation:

1 penny = 1 cent

So, 80 pennies = 80¢

Therefore, 80 pennies have the same value as 80¢

Share and Show

Draw the coins to show $1.00. Write the total value.
Question 1.
nickels

Answer: 20

Explanation :

$1 = 100 cents

1 nickel = 5 cents

20 nickels = 100 cents

Question 2.
quarters
________
Answer: 4

Explanation :

$1 = 100 cents

1 quarter = 25 cents

Which means ,

4 quarters = 25+25+25+25 = 100

Question 3.
dimes
________
Answer: 10

Explanation:

$1 = 100 cents

1 dime = 10 cents

Which means , 10 dimes = 100 cents

On Your Own

Circle coins to make $1.00.
Cross out the coins you do not use.
Question 4.

Answer:

Question 5.

Answer:

Question 6.
GO DEEPER
Warren shows $1.00 using only two kinds of coins. Draw and label coins he could use.
Answer:

$1 = 100 cents

100 cents can be shown in two kinds of coins as 3 quarters and 5 nickels

1 quarter =25 cents

Which means , 3 quarters = 25+25+25 = 75

1 nickel = 5 cents

Which means ,5 nickels = 5+5+5+5+5= 25

Total value = 75+25 = 100

 

Question 7.
THINK SMARTER
Sara has these coins.
Draw more coins to show $1.00.

Answer:

The given coins are 1 quarter , 1 dime and 1 nickel

1 quarter = 25 cents

1 dime = 10 cents

and 1 nickel = 5 cents

Total : 25+10+5 = 35

$1 is equals to 100 cents

100 cents – 35 cents = 65 cents

We need 65 cents more to make $1

65 cents can be shown as 2 quarters  1 dime and 1 nickel

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

and 1 nickel = 5 cents

Total : 50+10+5 = 65

Therefore, we need 2 quarters  1 dime and 1 nickel more to make $1

TAKE HOME ACTIVITY • Have your child draw a group of coins to show $1.00.

One Dollar Homework & Practice 7.5

Circle coins to make $1.00.
Cross out the coins you do not use.
Question 1.

Answer:

 

Question 2.

Answer:

Problem Solving
Question 3.
Draw more coins to show $1.00 in all.

Answer:

$ 1 = 100 cents

2 quarters = 25+25= 50 cents

We need 50¢ more to make $1.00

50¢ can be shown as  5 dimes

Question 4.
WRITE
Draw coins to show one way to make $1.00 using only nickels and quarters.
Answer:

$1 = 100 cents

$1 can be shown by using only nickels and quarters =3 quarters and 5 nickels

1 quarter is equal to 25 cents

Which means , 3 quarters = 25+25+25+= 75

1 nickel= 5 cents

Which means ,  5 nickels = 5+5+5+5+5= 25

Total value = 75+25= 100

 

Lesson Check
Question 1.
Which group of coins has a value of $1.00?

Answer:

$1 = 100 cents

1 quarter = 25 cents

Which means , 4 quarters = 25+25+25+25= 100 cents

Spiral Review
Question 2.
Write 692 using words.
________
Answer:

692= Six hundred ninety two

Question 3.
Keith ate 7 almonds, then ate 7 more. Is the total number of almonds even or odd?
7 + 7 = ______ almonds
_______
Answer:

7+7 = 14

Therefore , the total number of almonds is even

Question 4.
What is the total value of 1 quarter and 3 nickels?
_________
Answer: 40 cents

Explanation:

1 quarter = 25 cents

1 nickel = 5 cents

Which means , 3 nickels = 5+5+5= 15

Total value = 25+ 15= 40 cents

Therefore, the value of 1 quarter and 3 nickels = 40 cents.

Question 5.
Kristin is counting by tens. What numbers does she say next?
230, _____, _____, ______
Answer:

230, 240, 250, 260.

Money and Time Mid-Chapter Checkpoint

Concepts and Skills

Count on to find the total value.
Question 1.

Answer: 28¢

Explanation:

1 dime= 10 cents

Which means, 2 dimes = 10+10= 20

1 nickel = 5 cents and

3 pennies = 3 cents

Total :20+5+3

Therefore, the total value of the coins = 28¢

 

Question 2.

Answer: 76¢

Explanation:

1 quarter = 25 cents

Which means , 2 quarters = 25+25= 50

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

1 nickel = 5 cents and

1 penny = 1 cent

Total : 50+20+5+1 = 76

Therefore, the total value of the coins = 76¢

Use coins. Show the amount in two ways.
Draw and label the coins.
Question 3.
31¢
Answer:

31cents can be shown as 1 quarter, 1 nickel and 1 penny

1 quarter = 25 cents

1 nickel = 5 cents and

1 penny =1 cent

Total value = 25+5+1=31

Another way :

31 cents can be shown as 3 dimes , 1 penny

1 dime = 10 cents

Which means, 3 dimes = 10+10+10=30

and 1 penny = 1 cent

Total : 30 =1 = 31 cents

Question 4.
THINK SMARTER
Mary used these coins to buy a folder. What is the total value of these coins?

Answer: 60¢

Explanation:

1 quarter = 25 cents

Which means , 2 quarters = 25+25=50

1 nickel= 5 cents

Which means, 2 nickels= 5+5 = 10

Total : 50+10 =60

Therefore, the total value of the money = 60¢

 

Lesson 7.6 Amounts Greater Than $1

Essential Question How do you show money amounts greater than one dollar?

Listen and Draw

Draw and label the coins.
Write the total value.
_______
total value
Answer:

MATHEMATICAL PRACTICES
Use Repeated Reasoning
Explain how you found the total value of the coins in the coin bank.
Answer:

Share and Show

Circle the money that makes $1.00. Then
write the total value of the money shown.
Question 1.

__________
Answer:

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents ,

1 penny = 1 cent

and one $1 bill

Total value : $1+50+5+1 = $1.56

Question 2.

________
Answer:

1 quarter = 25 cents

Total value : 4 quarters = 25+25+25+25 = 100

1 dime = 10 cents

Which means, 3 dimes = 10+10+10 = 30

Total : 100+30 = 130

Therefore, total value of money = 130

On Your Own

Circle the money that makes $1.00. Then write the total value of the money shown.
Question 3.

_______
Answer:

The given coins are 4 quarters 1 dime and 1 nickel

1 quarter = 25 cents

Which means, 4 quarters = 25+25+25+25 = 100

1 dime = 10 dime

and 1 nickel = 5 cents

Total : 100+10+5 = $1.15

Therefore, the total value of coins = $1.15

Question 4.

Answer:

$1 bill= 100 cents

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50 cents

1 dime = 10 cents

Which means, 3 dimes = 10+10+10 = 30

1 nickel = 5 cents and

1 penny = 1 cents

Total value : 100+ 50+30+5+1 = $1.86

Question 5.

_______
Answer:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

1 dime = 10 cents

Which means, 3 dimes = 10+10+10 = 30

and 1 nickel = 5 cents

Total : 75 + 30 + 5 $1.10

Therefore, the total amount of money = $1.10

Question 6.
THINK SMARTER
Martin used 3 quarters and 7 dimes to pay for a kite. How much money did he use?

_______
Answer:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

1 dime = 10 cents

Which means, 7 dimes= 10+10+10+10+10+10+10 = 70

Total value = 75+70 = 145 cent

Therefore, the total value of money = $1.45

Problem Solving • Applications

Question 7.
GO DEEPER
Pam has fewer than 9 coins. The coins have a total value of $1.15. What coins could she have? Draw the coins. Then write a list of her coins.
Answer:

$1.15 can be shown in fewer than 9 coins as

4 quarters , 1 dime and 1 nickel

1 quarter = 25 cents

Which means, 4 quarters = 25+25+25+25 = 100

1 dime = 10 dime

and 1 nickel = 5 cents

Total : 100+10+5 = $1.15

Therefore, the total value of coins = $1.15

 

Question 8.
THINK SMARTER+
Jason put this money in his bank.

Answer:

Jason put a total of $1.35 in his bank

TAKE HOME ACTIVITY • With your child, take turns drawing coins or a $1 bill and coins with a total value of $1.23.

Amounts Greater Than $1 Homework & Practice 7.6

Circle the money that makes $1.00. Then write the total value of the money shown.
Question 1.

_________
Answer:

The total value of the money shown is

1 quarter = 25 cents

1 $1 bill , 1 dime = 10 cents

and 1 nickel = 5 cents

Total value : $1 +25+10+5 = $1.40

Question 2.

__________
Answer:

The total value of money shown :

1 quarter = 25 cents

Which means, 25+25+25 = 75

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

and 1 cent

Total : 75+20+10+1 = 166  cents or $1.16

Problem Solving
Solve. Write or draw to explain.
Question 3.
Grace found 3 quarters, 3 dimes, and 1 nickel in her pocket. How much money did she find?
________
Answer:

$1.10

Explanation:

1 quarter= 25 cents

Which means, 3 quarters = 75 cents

1 dime = 10 cents

Which means, 3 dimes = 30 cents

and 1 nickel = 5 cents

Total :75+30+5=110

So the total value of the money = $1.10

Question 4.
WRITE
Write about how to use the dollar sign and decimal point to show the total value of 5 quarters.
Answer:

1 quarter = 25 cents

Which means, 5 quarters = 25+25+25+25+25 = 125 cents

125 cents can be written as $1.25

Lesson Check
Question 1.
Julie has this money in her bank. What is the total value of this money?

________
Answer:

1 quarter = 25 cents

1 dime = 10 cents and

one $1 bill

Total value : $1 +25+10 = $1.35

Therefore, total value in Julie bank = $1.35

Spiral Review
Question 2.
There are 79 squash plants and 42 pepper plants in Julia’s garden. How many vegetable plants are in Julia’s garden altogether?

Answer:

7 9

+  4 2

__________

= 1 2 1

Therefore , the total number of plants in Julia’s garden are 121

Question 3.
What is the difference?

Answer:

6 1

–  2 7

_________________

3 4

 

Question 4.
What number is 100 less than 694?
_________
Answer:

594

Question 5.
Write an addition fact that has the same sum as 6 + 5.
10 + ______
Answer:

10+1 =11

Lesson 7.7 Problem Solving • Money

Essential Question How does acting it out help when solving problems about money?

Kendra gave 2 dimes, 2 nickels, 1 quarter, and two $1 bills to her sister. How much money did Kendra give her sister?

Unlock the Problem

Show how to solve the problem.
Draw to show the money that Kendra used.
Kendra gave her sister _________
Answer:

1 dime = 10 cents

Which means , 2 dimes = 10+10 = 20

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

1 quarter = 25 cents

and two $1 bills

Total value of money = $1+$1 +20+10+25 = $2.55

Therefore, Kendra gave her sister = $2.25

HOME CONNECTION • Your child used play money to act out the problem. Representing problems with materials can be a useful strategy for children to use to solve problems.

Try Another Problem

Use play coins and bills to solve.
Draw to show what you did.
Question 1.
Jacob has two $1 bills, 2 dimes, and 3 pennies in his pocket. How much money does Jacob have in his pocket?
_________
Answer:

two $1 bills = $1+$1 = $2

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

and 3 pennies = 3 cents

Total value : $2+20+3 = $2.23

Question 2.
Amber used 2 quarters, 1 nickel, 1 dime, and three $1 bills to buy a toy. How much money did Amber use to buy the toy?
__________
Answer:

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents

1 dime = 10 cents and

three $1 bills = $1+$1+$1 = $3

Total value : 50+5+10+$3 = $3.65

MATHEMATICAL PRACTICES
Explain how you found the amount of money in Jacob’s pocket.
Answer: The total value of the money is find in his pockets

Share and Show

Use play coins and bills to solve.
Draw to show what you did.
Question 3.
Val used 3 quarters, 2 nickels, 2 pennies, and one $1 bill to buy a book. How much money did Val use to buy the book?
__________
Answer:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75 cents

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

2 pennies = 2 cents

and $1 bill

Total value of money = 75+10+2 +$1= $1.87

Therefore, the amount Val use to buy the book = $1.87

Question 4.
Derek has two $1 bills, 2 quarters, and 6 dimes. How much money does he have?
___________
Answer:

Two $1 bills = $1 +$1 = $2

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

Which means, 6 dimes = 10+10+10+10+10+10 = 60 cents

Total value = $2 +50+60 = $3.10

Question 5.
THINK SMARTER
Katy has 3 quarters, 2 nickels, 2 dimes, and 3 pennies. How many more pennies does she need to have $1.10?

________ more pennies
Answer:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

1 dime = 10 cents

Which means, 2 dimes = 10+10 = 20

and 3 pennies = 3 cents

Total value = 75+10+20+3 = $1.08

To make $1.10 we need two more pennies

Problem Solving • Applications

Question 6.
MATHEMATICAL PRACTICE Make Sense of Problems
Victor has some dollar bills, some quarters, and some nickels. Draw and label dollar bills, quarters, and nickels to show $2.25.
Answer:

one $1 bill ,

1 quarter = 25 cents

Which means , 4 quarters = 25+25+25+25 = 100

1 nickel = 5 cents

Which means, 5 nickels = 5+5+5+5+5= 25

Total value : $1+100+20 = $2.25

Question 7.
THINK SMARTER
Ross used 3 quarters, 4 dimes, 3 nickels, and 5 pennies to buy a card. How much money did Ross use to buy the card? Draw to show how you solve the problem.
Answer:

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 =75 cents

1 dime = 10 cents

Which means, 4 dimes = 10+10+10+10 = 40

1 nickel = 5 cents

Which means, 3 nickels = 5+5+5 =15

and 5 pennies = 5 cents

Total : 75+40+15+5 = 135 cents

Therefore, the total value of money Ross used to buy the card = $1.35

TAKE HOME ACTIVITY • Ask your child to explain how he or she solved one problem in this lesson.

Problem Solving • Money Homework & Practice 7.7

Use play coins and bills to solve.
Draw to show what you did.
Question 1.
Sara has 2 quarters, 1 nickel, and two $1 bills.
How much money does Sara have?
_________
Answer:

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents

and two $1 bills = $1+$1 = $2

Total value : $1+$1 +50+5 = $2.55

Question 2.
Brad has one $1 bill, 4 dimes, and 2 nickels in his bank. How much money does Brad have in his bank?
__________
Answer:

$1 bill,

1 dime = 10 cents

Which means, 4 dimes = 10+10+10+10 = 40

and 1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

Total : $1+40+10 = $1.50

Question 3.
Mr. Morgan gives 1 quarter, 3 nickels, 4 pennies, and one $1 bill to the clerk. How much money does Mr. Morgan give the clerk?
__________
Answer:

1 quarter = 25 cents

1 nickel = 5 cents

Which means, 3 nickels = 5+5+5 15

4 pennies = 4 cents

and $1 bill

Total : $1 + 25+15+4 = $1.44

Question 4.
WRITE
Write or draw to explain how you would find the total value of two $1 bills and 3 quarters.
Answer:

Two $1 bills = $1+$1 = $2

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25 = 75

Total = $2 +75 = $2.75

Therefore, the total value of money =$2.75

Lesson Check
Question 1.
Lee has two $1 bills and 4 dimes. How much money does Lee have?
________
Answer:

4 dimes = 40 cents and $1 bill

The total value of money = $1.40

Question 2.
Dawn has 2 quarters, 1 nickel, and one $1 bill. How much money does Dawn have?
__________
Answer:

1 quarter = 25 cents

Which means, 2 quarters = 50 cents

1 nickel = 5 cents

and $1 bill

Total value of money is $1.55

Spiral Review
Question 3.
What is the value of the underlined digit?
56 ______
Answer:

The value of underlined digit 6 is once

Question 4.
Cecilia collected 342 pennies for her class’s penny drive. Marked collected 243 pennies. Use <, >, or = to compare. Who collected more?
342 ____ 243
________ collected more.
Answer:

342 > 243

Cecilia have collected more .

Question 5.
Brooke’s dog has 15 treats. Then he ate 8 of them. How many treats does he have left?
15 – 8 = _______
Answer:

15 – 8 = 7

Therefore, the number of treats he left = 7

Question 6.
What is the next number in this pattern?
225, 325, 425, 525, ______
Answer: 625

Lesson 7.8 Time to the Hour and Half Hour

Essential Question How do you tell time to the hour and half hour on a clock?

Listen and Draw

Draw the hour hand to show each time.

             

2 hours 30 minutes                        2 hours 50 minutes

       

5 hours 5 minutes                                    7 hours 25 minutes

MATHEMATICAL PRACTICES
Communicate Describe where the hour hand points to show half past 4:00.
Answer:

The time half past 4:00 is 4: 30

The hours hand is between 4 and 5 nd the minutes hand is on 6 , Which means 30 minutes.

The time is 4:30

Share and Show

Look at the clock hands. Write the time.
Question 1.

Answer:

The time is 1:00

As the hours hand on 1 and the minutes hand is on 12 .

So, the time is 1 :00

 

Question 2.

Answer:

8 hours 30 minutes

As the hours hand is between 8 and 9 and the minutes hand is on 6 .Which means, 30 minutes

So, the time is 8 hours 30 minutes

 

Question 3.

Answer:

3 hours 30 minutes

As the hours hand is between 3 and 4 and the minutes hand is on 6 .Which means, 30 minutes

So, the time is 3 hours 30 minutes

 

On Your Own

Look at the clock hands. Write the time.
Question 4.

Answer: 9 hours 30 minutes

As the hours hand is between 9 and 10 and the minutes hand is on 6 .Which means, 30 minutes

So, the time is 9 hours 30 minutes

 

Question 5.

Answer: 12 hours 30 minutes

Explanation:

The  hours hand is between 12 and 1 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 12 hours 30 minutes

 

Question 6.

Answer: 6’o clock

Explanation:

The  hours hand is on 6 and the minutes hand is on 12

So, the time is 6 hours or 6:00

 

Question 7.

Answer: 4’o clock

Explanation:

The  hours hand is on 4 and the minutes hand is on 12

So, the time is 4 hours or 4:00

Question 8.

Answer: 11 hours 30 minutes

Explanation:

The  hours hand is between 11 and 12 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 11 hours 30 minutes

 

Question 9.

Answer: 5 hours 30 minutes

Explanation:

The  hours hand is between 5 and 6 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 5 hours 30 minutes

 

Question 10.
THINK SMARTER
Look at the time. Draw the hour hand and the minute hand to show the same time.

Answer:

7:30                         2:00                           11:00

Problem Solving • Applications

Question 11.
MATHEMATICAL PRACTICE Make Connections
Allie eats lunch when the hour hand points halfway between the 11 and the 12, and the minute hand points to the 6. When does Allie eat lunch? Show the time on both clocks.

How do you know what time to write in the digital clock? Explain.
_______________________
_________________________
Answer:

The  hour hand points halfway between the 11 and the 12, and the minute hand points to the 6.

The time Allie eat lunch is 11:30

Question 12.
THINK SMARTER
Match the clocks that show the same time.

Answer:

TAKE HOME ACTIVITY • Have your child describe what he or she knows about a clockface.

Time to the Hour and Half Hour Homework & Practice 7.8

Look at the clock hands. Write the time.
Question 1.

Answer:  3’o clock

Explanation:

The  hours hand is on 3 and the minutes hand is on 12

So, the time is 3 hours or 3:00

Question 2.

Answer: 10 hours 30 minutes

Explanation:

The  hours hand is between 10 and 11 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 10 hours 30 minutes

 

Question 3.

Answer: 4’o clock

Explanation:

The  hours hand is on 4 and the minutes hand is on 12

So, the time is 4 hours or 4:00

Problem Solving
Question 4.
Amy’s music lesson begins at 4:00. Draw hands on the clock to show this time.

Answer:

The hours hand is on 4 and the minutes hand is on 12

So, the time is 4:00

 

Question 5.
WRITE
Draw a clock to show the time as 2:30. Describe how you decided where the clock hands should point.
______________________
______________________
Answer:

The hours hand is between 2 and 3 and the minutes hand is on 6 .Which means, 30 minutes

So, the time is 2 hours 30 minutes .

Lesson Check
Question 1.
What is the time on this clock?

_____
Answer: 3 hours 30 minutes

Explanation:

The  hours hand is between 3 and 4 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 3 hours 30 minutes

 

Question 2.
What is the time on this clock?

______

Answer: 6’o clock

Explanation:

The  hours hand is on 6 and the minutes hand is on 12

So, the time is 6 hours or 6:00

 

Spiral Review
Question 3.
Rachel has one $1 bill, 3 quarters, and 2 pennies. How much money does Rachel have?
________
Answer: $1.77

Explanation:

1 $1 bill ,

1 quarter = 25 cents

Which means, 3 quarters = 25+25+25=75

and 2 pennies = 2 cents

Total $1 +75+2 = $1.77

Therefore, the total value of the money = $1.77

 

Question 4.
Write <, >, or = to compare 260 and 362.
260 _____ 362
Answer:

260 < 362

Question 5.
What number is shown with these blocks?

______
Answer:

Question 6.
Circle any even numbers.
1 3 4 5
Answer:

4 – Even number

Lesson 7.9 Time to 5 Minutes

Essential Question How do you tell and show time to five minutes?

Listen and Draw

Draw the hour hand and the minute hand to show the time.

Answer:

MATHEMATICAL PRACTICES
Describe where the minute hand points to show half past the hour.
Answer: The minutes hand points to 6 Which means , 30 minutes or half past

Share and Show

Look at the clock hands. Write the time.
Question 1.

Answer: 3 hours 25 minutes

Explanation:

The  hours hand is between 3 and 4 and the minutes hand is on 5 , which means, 25 minutes

So, the time is 3 hours 25 minutes

Question 2.

Answer: 9 hours 5 minutes

Explanation:

The  hours hand is between 9 and 10 and the minutes hand is on 1 , which means, 5 minutes

So, the time is 9 hours 5 minutes

 

Question 3.

Answer:

Answer: 11 hours 40 minutes

Explanation:

The  hours hand is between 11 and 40 and the minutes hand is on 8 , which means, 40 minutes

So, the time is 11 hours 40 minutes

 

Question 4.

Answer:

Answer: 12 hours 50 minutes

Explanation:

The  hours hand is between 12 and 1 and the minutes hand is on 10 , which means, 50 minutes

So, the time is 12 hours 50 minutes

 

Question 5.

Answer: 7 hours 15 minutes

Explanation:

The  hours hand is between 7 and 8 and the minutes hand is on 3 , which means, 15 minutes

So, the time is 7 hours 15 minutes

 

Question 6.

Answer: 5 hours 55 minutes

Explanation:

The  hours hand is between 5 and 6 and the minutes hand is on 11 , which means, 55 minutes

So, the time is 5 hours 55 minutes

 

On Your Own

Look at the clock hands. Write the time.
Question 7.

Answer: 6 hours 40 minutes or 6:40

Explanation:

The  hours hand is between 6 and 7 and the minutes hand is on 8 , which means, 40 minutes

So, the time is 6 hours 40 minutes

 

Question 8.

Answer: 9 hours 20 minutes or 9: 20

Explanation:

The  hours hand is between 9 and 10 and the minutes hand is on 4 , which means, 20 minutes

So, the time is 9 hours 20 minutes

Question 9.

Answer: 4 hours 30 minutes or 4:30

Explanation:

The  hours hand is between 4 and 5 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 4 hours 30 minutes

Question 10.

Answer:

2 hours 45 minutes or 2: 45

Explanation:

The  hours hand is between 2 and 3 and the minutes hand is on 9 , which means, 45 minutes

So, the time is 2 hours 45 minutes

Question 11.

Answer:

10 hours 10 minutes or 10 :10

Explanation:

The  hours hand is between 10 and 11 and the minutes hand is on 2 , which means, 10 minutes

So, the time is 10 hours 10 minutes

Question 12.

Answer:

8 hours 35 minutes or 8:35

Explanation:

The  hours hand is between 8 and 9 and the minutes hand is on 7 , which means, 35 minutes

So, the time is 8 hours 35 minutes

MATHEMATICAL PRACTICE Use Models
Look at the time. Draw the minute hand to show the same time.
Question 13.

Answer:

Question 14.

Answer:

Question 15.

Answer:

Problem Solving • Applications

Draw the clock hands to show the time.
Then write the time.
Question 16.
THINK SMARTER
My hour hand points between the 8 and the 9. In 35 minutes it will be the next hour. What time is it?

Answer:

The hours hand is between 8 and 9 and the minutes hand is on 5. Which means, 25 minutes

Also in 35 minutes , it will be 1 hour

So, the time is 8 hours 25 minutes

Question 17.
GO DEEPER
Mr. Brady fixes broken computers. Look at the start and finish times for his work on one computer. How many minutes did he work on the computer?

_______ minutes
Answer:

60 minutes

Explanation:

Given that , Mr. Brady fixes broken computers.

The time he starts  the work = 4:00

The time he finishes the work = 5: 00

The time difference between 1 hour is 60 minutes

Therefore, the time he took to fix the computer = 60 minutes

Question 18.

THINK SMARTER
Angel eats lunch at 12:45. Angel spent 10 minutes eating lunch. Draw the minute hand on the clock to show when Angel finished eating. Write the time.

___ : ____
Answer:

Given that, Angel eats lunch at 12 :45

She spend 10 minutes to eat

10 minutes after 12 :45 means 12:55

Therefore, Angel completes her lunch at 12:55

TAKE HOME ACTIVITY • Have your child draw a large blank clock face and use two pencils as clock hands to show some different times.

Time to 5 Minutes Homework & Practice 7.9

Look at the clock hands. Write the time.
Question 1.

Answer:

8 hours 15 minutes or 8: 15

Explanation:

The  hours hand is between 8 and 9 and the minutes hand is on 3 , which means, 15 minutes

So, the time is 8 hours 15 minutes

Question 2.

Answer:

2 hours 40 minutes or 2:40

Explanation:

The  hours hand is between 2 and 3 and the minutes hand is on 8 , which means, 40 minutes

So, the time is 2 hours 40 minutes

Question 3.

Answer:

5 hours 55 minutes or 5: 55

Explanation:

The  hours hand is between 5 and 6 and the minutes hand is on 11 , which means, 55 minutes

So, the time is 5 hours 55 minutes

Problem Solving
Draw the minute hand to show the time.
Then write the time.
Question 4.
My hour hand points between the 4 and the 5. My minute hand points to the 9. What time do I show?

Answer:

The time is 4: 45

The hours hand is between 4 and 5 and the minutes hand is on 9 . Which means, 45 minutes

So, the time is 4 hours 45 minutes.

Question 5.
WRITE
Draw a clock showing 2:50. Explain how you know where the clock hands point.
Answer:

The clock shows the time 2 : 50

The hours hand is between 2 and 3 and the minutes hand is on 10 .Which means, 50 minutes

The time is 2 hours 50 minutes .

Lesson Check
Question 1.
What is the time on this clock?

Answer:

8 hours 5 minutes or 8: 05

Explanation:

The  hours hand is between 8 and 9 and the minutes hand is on 1 , which means, 5 minutes

So, the time is 8 hours 5 minutes

Question 2.
What is the time on this clock?

Answer:

7 hours 20 minutes or 7:20

Explanation:

The  hours hand is between 7 and 8 and the minutes hand is on 4 , which means, 20 minutes

So, the time is 7 hours 20 minutes

Spiral Review
Question 3.
What is the sum?
1 + 6 + 8 = _____
Answer: 15

Question 4.
Which number has the same value as 30 tens?
______
Answer: 300

Question 5.
Steven has 3 rows of toys. There are 4 toys in each row. How many toys are there?
_____ toys
Answer:

Given that , Steven has 3 rows of toys

There are 4 toys in each row

Total number of toys 4+4+4 = 12

Therefore, the total number of toys = 12

Question 6.
Jill has 14 buttons. She buys 8 more buttons. How many buttons does Jill have?

Answer:

Given,

The total number of buttons Jill have =  14

Also, she has 8 more buttons

Now, total buttons =

14 + 8 = 22

Therefore, the total number of buttons = 120

Lesson 7.10 Practice Telling Time

Essential Question What are the different ways you can read the time on a clock?

Listen and Draw

Write the times on the digital clocks.
Then label the clocks with the children’s names.

1. 11 hours 45 minutes – 11: 45
2. 3 hours 25 minutes – 3 :25
3. 7 hours 15 minutes – 7:15
4. 6 hours 10 minutes – 6:10

MATHEMATICAL PRACTICES
Where would the minute hand point to show 15 minutes after the hour? Explain.
Answer:

The minutes hand should point on 3 to show 15 minutes after the hour.

Share and Show

Draw the minute hand to show the time. Write the time.
Question 1.
15 minutes after 1

Answer:

15 minutes after 1

The time is 1 hours 15 minutes

The hours hand is between 1 and 2 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 1 hours 15 minutes

 

Question 2.
half past 9

Answer:

Half past 9 means 30 minutes after 9

The time is 9 hours 30 minutes

The hours hand is between 9 and 10 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 9 hours 30 minutes

Question 3.
quarter past 5

Answer:

Quarter past 5 means 15 minutes after 5

The time is 5 hours 15 minutes

The hours hand is between 5 and 6 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 5 hours 15 minutes

 

Question 4.
quarter past 10

Answer:

Quarter past 10 means 15 minutes after 10

The time is 10 hours 15 minutes

The hours hand is between 10 and 11 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 10 hours 15 minutes

 

Question 5.
40 minutes after 3

Answer:

40 minutes after 3 means, 3:40

The time is 3 hours 40 minutes

The hours hand is between 3 and 4 and the minutes hand is on 8. Which means, 40 minutes

So, the time is 3 hours 40 minutes

 

Question 6.
half past 7

Answer:

Half past 7 means 30 minutes after 7

The time is 7 hours 30 minutes

The hours hand is between 7 and 8 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 7 hours 30 minutes

 

On Your Own

Draw the minute hand to show the time.
Write the time.
Question 7.
15 minutes after 11

Answer:

15 minutes after 11 means, 11:15

The time is 11 hours 15 minutes

The hours hand is between 11 and 12 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 11 hours 15 minutes

 

Question 8.
quarter past 4

Answer:

Quarter past 4 means 15 minutes after 4

The time is 4 hours 15 minutes

The hours hand is between 4 and 5 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 4 hours 15 minutes

 

Question 9.
25 minutes after 8

Answer:

25 minutes after 8

The time is 8 hours 25 minutes

The hours hand is between 8 and 9 and the minutes hand is on 5. Which means, 25 minutes

So, the time is 8 hours 25 minutes

 

Question 10.
10 minutes after 6

Answer:

10 minutes after 6 means 6: 10

The time is 6 hours 10 minutes

The hours hand is between 6 and 7 and the minutes hand is on 2. Which means, 10 minutes

So, the time is 6 hours 10 minutes

 

Question 11.
half past 2

Answer:

Half past 2 means 30 minutes after 2

The time is 2 hours 30 minutes

The hours hand is between 2 and 3 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 2 hours 30 minutes

 

Question 12.
45 minutes after 3

Answer:

45 minutes after 4 means,  4: 45

The time is 4 hours 45 minutes

The hours hand is between 4 and 5 and the minutes hand is on 9. Which means, 45 minutes

So, the time is 4 hours 45 minutes

 

Question 13.
5 minutes after 7

Answer:

5 minutes after 7 means 7:05

The time is 7 hours 5 minutes

The hours hand is between7 and 8 and the minutes hand is on 1. Which means, 5 minutes

So, the time is 7 hours 5 minutes

 

Question 14.
30 minutes after 12

Answer:

30 minutes after 12

The time is 12 hours 30 minutes

The hours hand is between 12 and 1 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 12 hours 30 minutes

Question 15.
quarter past 10

Answer:

Quarter past 10 means 15 minutes after 10

The time is 10 hours 15 minutes

The hours hand is between 10 and 11 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 10 hours 15 minutes

Problem Solving • Applications

Question 16.
THINK SMARTER
Lily eats lunch at quarter past 12. Meg eats lunch at 12:30. Katie eats lunch at 12:15. Which girls eat lunch at the same time?
_______ and _______

Answer:

Given that, Lily eats lunch at quarter past 12 which also means 30 minutes after 12, 12: 30

Meg eats lunch at 12: 30

and Katie eats lunch at 12: 15

Therefore, Lily and Meg eat lunch at the same time .

Question 17.
MATHEMATICAL PRACTICE
Explain Soccer practice starts at 4:30. Gabe arrives at soccer practice at 4:15. Does he arrive before or after practice starts? Explain.
____________________
____________________
Answer:

Given that, Soccer practice starts at 4: 30

and Gabi arrives practice at 4: 15

So, Gabi arrives 15 minutes before the soccer practice starts.

Question 18.
THINK SMARTER
What time is shown on the clock? Fill in the bubble next to all the ways to write or say the time.

Answer:

The hours hand is between 3 and 4 and the minutes hand is on 5 . Which means, 25 minutes

So the time is 3 : 25 or 25 minutes after 3

1. 3: 25
2. 25 minutes after 3

 

TAKE HOME ACTIVITY • Name a time to 5 minutes. Ask your child to describe where the clock hands point at this time.

Practice Telling Time Homework & Practice 7.10

Draw the minute hand to show the time. Write the time.
Question 1.
quarter past 7

Answer:

 

Quarter past 7 means 15 minutes after 7

The time is 7 hours 15 minutes

The hours hand is between 7 and 8 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 7 hours 15 minutes

Question 2.
half past 3

Answer:

Half past 3 means 30 minutes after 3

The time is 3 hours 30minutes

The hours hand is between 3 and 4 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 3 hours 30 minutes

Question 3.
50 minutes after 1

Answer:

50 minutes after 1 means  1 hour 50 minutes

The time is 1 hours 50minutes

The hours hand is between 1 and 2 and the minutes hand is on 10. Which means, 50 minutes

So, the time is 1 hours 50 minutes

Question 4.
quarter past 11

Answer:

 

Quarter past 11 means 15 minutes after 11

The time is 11 hours 15 minutes

The hours hand is between 11 and 12 and the minutes hand is on 3. Which means, 15 minutes

So, the time is 11 hours 15 minutes

 

Problem Solving
Draw hands on the clock to solve.
Question 5.
Josh got to school at half past 8. Show this time on the clock.

Answer:

Half past 8 means, 30 minutes after 8

The time Josh got to school is 8 hours 30 minutes

As the hours hand is between 8 and 9 and the minutes hand is on 6. Which means, 30 minutes

So, the time is 8 hours 30 minutes

Question 6.
WRITE
Write the time 8:30. Then write this time in two other ways, using words.
______________
________________
Answer:

The time is

8:30 = Half past 8

8 :30 – 8 hours 30 minutes

Lesson Check
Question 1.
Write the time on this clock using words.

Answer: The time is six hours fifteen minutes or quarter past 6

Spiral Review
Question 2.
What is the value of this group of coins?

Answer: 46 cents

Explanation:

1 quarter = 25 cents

1 dime = 10 cents

Which means , 2 dimes = 10+10=20

1 penny = 1 cents

Total : 25+20+1 = 46 cents

Therefore, the total value of the coins = 46 cents

Question 3.
What time is shown on this clock?

________
Answer: 7:15

Explanation :

The hours hand is between 7 and the minutes hand is on 3 ,Which means 15 minutes

So ,the time is 7 hours 15 hours.

 

Question 4.
Write six hundred forty-seven using numbers.
______________
Answer:

647 – Six hundred forty-seven

Lesson 7.11 A.M. and P.M.

Essential Question How do you use A.M. and P.M. to describe times?

Listen and Draw

Draw the clock hands to show each time.
Then write each time.

Answer:

The time is 7 hours 15 minutes a.m.

As the hours hand is between 7 and 8 and the minutes hand is on 3 Which means, 15 minutes

So, the time is 7 hours 15 minutes a.m.

The time is 3 hours 45 minutes p.m.

As the hours hand is between 3 and 4 and the minutes hand is on 9 .Which means, 45 minutes

So, the time is 3 hours 45 minutes .

MATHEMATICAL PRACTICES
Describe some activities that you do in both the morning and in the evening.
Answer:

The activities that we do in both the morning and in the evening are

1. Reading
2. Exercise/meditation
3. Brushing teeth
4. Taking bath

Share and Show

Write the time. Then circle a.m. or p.m.
Question 1.
eat breakfast

Answer:

7:15 a.m.

7 hours 15 minutes

Explanation:

The  hours hand is between 7 and 8 and the minutes hand is on 3 , which means, 15 minutes

So, the time is 7 hours 15 minutes

 

Question 2.
go to art class

Answer:

1:40 p.m.

1 hours 40 minutes

Explanation:

The  hours hand is between 1 and 2 and the minutes hand is on 8 , which means, 40 minutes

So, the time is 1 hours 40 minutes

 

Question 3.
do homework

Answer:

4:30 p.m.

4 hours 30 minutes

Explanation:

The  hours hand is between 4 and 5 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 4 hours 30 minutes

 

Question 4.
arrive at school

Answer:

8: 25 a.m.

8 hours 25 minutes

Explanation:

The  hours hand is between 8 and 9 and the minutes hand is on 5 , which means, 25 minutes

So, the time is 8 hours 25 minutes

 

On Your Own

Write the time. Then circle a.m. or p.m.
Question 5.
go to the library

Answer:

2:50 p.m.

2 hours 50 minutes

Explanation:

The  hours hand is between 2 and 3 and the minutes hand is on 10 , which means, 50 minutes

So, the time is 2 hours 50 minutes

 

Question 6.
go to science class

Answer:

10:30 a.m.

10 hours 30 minutes

Explanation:

The  hours hand is between 10 and 11 and the minutes hand is on 6 , which means, 30 minutes

So, the time is 10 hours 30 minutes

 

Question 7.
eat lunch

Answer:

11:45 a.m.

11 hours 45 minutes

Explanation:

The  hours hand is between 11 and 12 and the minutes hand is on 9 , which means, 45 minutes

So, the time is 11 hours 45 minutes

 

Question 8.
look at the moon

Answer:

8: 15 p.m.

8 hours 15 minutes

Explanation:

The  hours hand is between 8 and 9 and the minutes hand is on 3 , which means, 15 minutes

So, the time is 8 hours 15 minutes

 

Question 9.
THINK SMARTER
Use the times in the list to complete the story.

Don got to school at _______. His class went to the library at _____. After school, Don read a book at _____.
Answer:

Don got to school at 8 : 30 a.m. His class went to the library at 10:15a.m.  After school, Don read a book at 3:20p.m.

Problem Solving • Applications

Question 10.
GO DEEPER
Some times are shown on this time line. Write a label for each dot that names something you do at school during that part of the day.

At what times would you say the dots are placed on the time line?
_____ and _____
Answer:

8:00 a.m. – Yoga class

10:00 a.m. – Project work

Noon – Eat lunch

2:00 p.m. – Music class

4: 00 – Games

1. 9: 00 a.m.
2. 1:00 p.m.

Question 11.
THINK SMARTER+
The clock shows the time Jane goes to recess. Write the time. Then circle a.m. or p.m.

Recess lasted one hour. Write the time recess was over. Write a.m. or p.m.
_______________
Answer:

The clock sows the time is 11: 30 a.m.

As the hours hand is between 11 and 12 and the minutes hand is on 6 Which means, 30 minutes

So , the time is 11 hours 30 minutes a.m.

Given that, Recess lasted one hour .

So, the time recess was over is 12 : 30 p.m.

TAKE HOME ACTIVITY • Name some activities and times. Have your child say a.m. or p.m. for the times.

A.M. and P.M. Homework & Practice 7.11

Write the time. Then circle A.M. or P.M.
Question 1.
walk the dog

Answer: 4 hours 40 minutes p.m.

Explanation:

The hours hand is between 4 and 5 and the minutes hand is on 8 .Which means 40 minutes

So the time is 4:40 p.m.

Question 2.
finish breakfast

Answer:

7 hours 30 minutes A.m.

Explanation :

The hours hand is between 7 and 8 and the minutes hand is on 6 . Which means , 30 minutes

So, the time is 7 : 30 a.m.

Problem Solving
Use the list of times. Complete the story.

Question 3.
Jess woke up at _____. She got on the bus at _____ and went to school. She left school at _______.
Answer:

Jess woke up at 7:00 A.m. She got on the bus at 8:30 A.m. and went to school . She left the school at 3:15 p.m.

Question 4.
WRITE
List two school activities that you do in the morning and two school activities that you do in the afternoon. Write times for these activities using A.M. and P.M.
___________________
__________________
Answer:

Morning activities:

a. Yoga class – 8:30 a.m.

b. Art class – 11:45 a.m.

Evening activities

a. Drawing time : 3:30 p.m.

b. Music class : 5:00 p.m.

Lesson Check
Question 1.
The clock shows when the soccer game ended. What time was it?

_______
Answer:

4 hours 50 minutes

Explanation:

The hours hand is between 4 and 5 and the minutes hand is on 10 ,Which means 50 minutes

So, the time is 4 hours 50 minutes

Question 2.
The clock shows when Dad gets up for work. What time is it?

_______
Answer:

6 hours 10 minutes

Explanation :

The hours hand is on 6 and the minutes hand is on 2 .Which means, 10 minutes

So, the time is 6 hours 10 minutes .

Spiral Review
Question 3.
What coin has the same value as 25 pennies? Draw your answer.
Answer:

Quarter

Explanation:

1 penny = 1 cent

Which means , 25 pennies = 25 cents

We know that 1 quarter = 25 cents

So, the coin is a quarter coin.

 

Question 4.
Describe 72 as a sum of tens and ones.
____ + ____
Answer:

72 can be shown in tens as 70 and once as 2

Total : 70 + 2 = 72

 

Question 5.
At the beginning of the school year there were 437 2nd graders at Woods Elementary. Over the course of the year,24 students joined. How many 2nd graders are there at the end of the year?

Answer:

4 3 7

+    2 4

_______________

4 6 1

Therefore, the number of  2nd graders are there at the end of the year = 461

Question 6.
What time is quarter past 3?
_______
Answer:

3 : 15

quarter past means 15 minutes after 3

So the time is 3 hours 15 minutes.

Money and Time Review/Test

Question 1.
Andrea pays $2.15 for a jump rope. Fill in the bubble next to all the ways that show $2.15.

Answer:

1. two $1 bills , 1 dime and 1 nickel = $2.15
2. one $1 bill, 3 quarters and 4 dimes = $2.15

Question 2.
The clock shows the time Michael eats breakfast.
Write the time. Circle a.m. or p.m.

Tell how you knew whether to select a.m. or p.m.
Answer: 7:10 a.m.

The time is 7 hours 10 minutes as the hours hand is on 7 and the minutes hand is on 2, Which means 10 minutes

And also breakfast is consumed in morning time

So, the time is 7: 10 a.m.

Question 3.
Fill in the bubble next to all the groups of coins with a total of 60¢.

Answer:

1. Yes, because 2 quarters = 50¢ , 1 dime= 10¢ ; Total = 60¢
2. Yes, because 1 quarter = 25 ¢,2 dimes = 20¢ and 3 nickels = 15¢ ;Total = 60¢
3. No, because 5 dimes = 50¢, 1 nickel = 5¢ 6 pennies = 6 cents ;Total = 61¢
4. No, because 4 nickels = 20¢ , 20 pennies = 20 cents ;Total = 40¢

Question 4.
GO DEEPER
Tess gave Raul these coins. Tess says she gave Raul $1.00. Is Tess correct? Explain.

_______________________
______________________
Answer:  No, she is wrong

Explanation:

$1 = 100 cents

The value of the coins she gave =

1 quarter = 25 cents

Which means, 2 quarters= 25+25 = 50

and 1 dime = 10 cents

Total :

50 + 10 = 60

So, the value of coins she gave to Raul = 60¢

Therefore, Tess is wrong .

Question 5.
Write the time that is shown on this clock.

Answer: 8 hours 5 minutes

Explanation :

The hours hand is on 8 and the minutes hand is on 1 which means, 5 minutes

So, the time is 68 hours 5 minutes

Question 6.
What time is shown on the clock? Fill in the bubble next to all the ways to write or say the time.

Answer: The time in the given clock is 4 hours 35 minutes

It can be shown as 4 : 35

It can also be written as 35 minutes past 4

Question 7.
THINK SMARTER+
Alicia has this money in her pocket.

Answer: $1.70

Explanation:

1 dollar = 100 cents

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 dime = 10 cents

Which means , 2 dimes = 10+10 = 20

Total value of money = 100+50+20 = 170 cents

Is can be shown as $1 .70

Therefore, Alicia has a total of $1.70 in her pocket.

Question 8.
Kate’s father gave her these coins. Write the value of the coins. Explain how you found the the total value.

_________________________
_________________________
Answer:31 ¢

Explanation:

1 quarter = 25 cents

Which means, 2 quarters = 25+25 = 50

1 nickel = 5 cents

Which means, 2 nickels = 5+5 = 10

and 1 penny = 1 cent

Total value of coins = 50+10+1 = 61¢

 

Question 9.
Write the times the clocks show.

Answer:

1. 4 hours 30 minutes
2. 7 hours 30 minutes
3. 5 ‘o clock

Question 10.
Ben has 30¢. Circle coins to show this amount.

Answer:

Question 11.
Mia buys apples that costs 76¢.
Draw and label coins to show a total value of 76¢
Answer:

76¢ can be shown as 3 quarters and 1 penny

1 quarter = 25 cents

Which means , 3 quarters = 25+25+25 = 75

And 1 penny = 1 cents

Total : 75+1 = 76¢