Engage NY Eureka Math 2nd Grade Module 7 Lesson 15 Answer Key
Eureka Math Grade 2 Module 7 Lesson 15 Sprint Answer Key
A. Adding and Subtracting by 2
Question 1.
0 + 2 =
Answer:
0 + 2 = 2
Explanation:
Adding any two numbers gives us Sum.
Adding any number to 0 gives the sum the number itself.
Question 2.
2 + 2 =
Answer:
2 + 2 = 4
Question 3.
4 + 2 =
Answer:
4 + 2 = 6
Question 4.
6 + 2 =
Answer:
6 + 2 = 8
Question 5.
8 + 2 =
Answer:
8 + 2 = 10
Explanation:
Adding 8 and 2 gives the sum 10.
Here 1 is carried to the tens place and 0 is represented in the ones place.
Question 6.
10 + 2 =
Answer:
10 + 2 = 12
Question 7.
12 + 2 =
Answer:
12 + 2 = 14
Question 8.
14 + 2 =
Answer:
14 + 2 = 16
Question 9.
16 + 2 =
Answer:
16 +2 = 18
Question 10.
18 + 2 =
Answer:
18 + 2 = 20
Question 11.
20 – 2 =
Answer:
20 – 2 = 18
Question 12.
18 – 2 =
Answer:
18 – 2 = 16
Question 13.
16 – 2 =
Answer:
16 – 2 = 14
Question 14.
14 – 2 =
Answer:
14 – 2 = 12
Question 15.
12 – 2 =
Answer:
12 – 2 = 10
Question 16.
10 – 2 =
Answer:
10 – 2 = 8
Explanation:
Subtracting 10 and 2 gives the difference 8.
Here 1 in tens place and 0 in ones place and subtracting 2 from ones place. Since 0 is less than 2 we borrow 1 from tens place
1 becomes 0 and 0 in the ones place becomes 10 and we subtract 2 from ones 10 we get the difference 8.
Question 17.
8 – 2 =
Answer:
8 – 2 = 6
Question 18.
6 – 2 =
Answer:
6 – 2 = 4
Question 19.
4 – 2 =
Answer:
4 – 2 = 2
Question 20.
2 – 2 =
Answer:
2 – 2 = 0
Question 21.
2 + 0 =
Answer:
2 + 0 = 2
Question 22.
2 + 2 =
Answer:
2 + 2 = 4
Question 23.
2 + 4 =
Answer:
2 + 4 = 6
Question 24.
2 + 6 =
Answer:
2 + 6 = 8
Question 25.
2 + 8 =
Answer:
2 + 8 = 10
Question 26.
2 + 10 =
Answer:
2 + 10 = 12
Question 27.
2 + 12 =
Answer:
2 + 12 = 14
Question 28.
2 + 14 =
Answer:
2 + 14 = 16
Question 29.
2 + 16 =
Answer:
2 + 1 6 = 18
Question 30.
2 + 18 =
Answer:
2 + 1 8 = 20
Question 31.
0 + 22 =
Answer:
0 + 22 = 22
Question 32.
22 + 22 =
Answer:
22 + 22 = 44
Question 33.
44 + 22 =
Answer:
44 + 22 = 66
Question 34.
66 + 22 =
Answer:
66 + 22 = 88
Question 35.
88 – 22 =
Answer:
88 – 22 = 66
Question 36.
66 – 22 =
Answer:
66 – 22 = 44
Question 37.
44 – 22 =
Answer:
44 – 22 = 22
Question 38.
22 – 22 =
Answer:
22 -22 = 0
Explanation:
Subtracting any number by itself gives the difference zero.0
Question 39.
22 + 0 =
Answer:
22 + 0 = 22
Explanation:
Adding Zero to any number gives the sum the number itself.
Question 40.
22 + 22 =
Answer:
22 + 22 = 44
Question 41.
22 + 44 =
Answer:
22 + 44 = 66
Question 42.
66 + 22 =
Answer:
66 + 22 = 88
Question 43.
888 – 222 =
Answer:
888 – 222 = 666
Explanation:
Here a 3 digit number is subtracted from a 3 digit number.
First ones places are subtracted then tens place and then hundreds place.
8 – 6 = 2, 8 – 6 = 2 , 8 – 6 = 2.
222 is the difference.
Question 44.
666 – 222 =
Answer:
666 – 222 = 444
B. Adding and Subtracting by 2
Question 1.
2 + 0 =
Answer:
2 + 0 = 2
Question 2.
2 + 2 =
Answer:
2 + 2 = 4
Question 3.
2 + 4 =
Answer:
2 + 4 = 6
Question 4.
2 + 6 =
Answer:
2 + 6 = 8
Question 5.
2 + 8 =
Answer:
2 + 8 = 10
Question 6.
2 + 10 =
Answer:
2 + 10 = 12
Question 7.
2 + 12 =
Answer:
2 + 12= 14
Question 8.
2 + 14 =
Answer:
2 + 14 = 16
Question 9.
2 + 16 =
Answer:
2 + 16 = 18
Question 10.
2 + 18 =
Answer:
2 + 18 = 20
Question 11.
20 – 2 =
Answer:
20 – 2 = 18
Question 12.
18 – 2 =
Answer:
18 – 2 = 16
Question 13.
16 – 2 =
Answer:
16 – 2 = 14
Question 14.
14 – 2 =
Answer:
14 – 2 = 12
Question 15.
12 – 2 =
Answer:
12 – 2 = 10
Question 16.
10 – 2 =
Answer:
10 – 2 = 8
Question 17.
8 – 2 =
Answer:
8 – 2 = 6
Question 18.
6 – 2 =
Answer:
6 – 2 = 4
Question 19.
4 – 2 =
Answer:
4 – 2 = 2
Question 20.
2 – 2 =
Answer:
2 – 2 = 0
Question 21.
0 + 2 =
Answer:
0 + 2 = 2
Question 22.
2 + 2 =
Answer:
2 + 2 = 4
Question 23.
4 + 2 =
Answer:
4 + 2 = 6
Question 24.
6 + 2 =
Answer:
6 + 2 = 8
Question 25.
8 + 2 =
Answer:
8 + 2 = 10
Question 26.
10 + 2 =
Answer:
10 + 2 = 12
Question 27.
12 + 2 =
Answer:
12 + 2 = 14
Question 28.
14 + 2 =
Answer:
14 + 2 = 16
Question 29.
16 + 2 =
Answer:
16 + 2 = 18
Question 30.
18 + 2 =
Answer:
18 + 2 = 20
Question 31.
0 + 22 =
Answer:
0 + 22 = 22
Question 32.
22 + 22 =
Answer:
22 +22 = 44
Question 33.
22 + 44 =
Answer:
22 +44 = 66
Question 34.
66 + 22 =
Answer:
66 + 22 = 88
Question 35.
88 – 22 =
Answer:
88 – 22 = 66
Question 36.
66 – 22 =
Answer:
66 – 22 = 44
Question 37.
44 – 22 =
Answer:
44 – 22 = 22
Question 38.
22 – 22 =
Answer:
22 -22 = 0
Question 39.
22 + 0 =
Answer:
22 + 0 = 22
Question 40.
22 + 22 =
Answer:
22 +22 = 44
Question 41.
22 + 44 =
Answer:
22 + 44 = 66
Question 42.
66 + 22 =
Answer:
66 + 22 = 88
Question 43.
666 – 222 =
Answer:
666 – 222 = 444
Question 44.
888 – 222 =
Answer:
888 – 222 = 666.
Eureka Math Grade 2 Module 7 Lesson 15 Problem Set Answer Key
Use your ruler to measure the length of the objects below in inches. Using your ruler, draw a line that is the same length as each object.
Question 1.
a. A pencil is _____ inches.
Answer:
A pencil is _7_ inches.
b. Draw a line that is the same length as the pencil.
Answer:
Question 2.
a. An eraser is ______ inches.
Answer:
An eraser is _3__ inches.
b. Draw a line that is the same length as the eraser.
Answer:
Question 3.
a. A crayon is ______ inches.
Answer:
A crayon is __4____ inches.
b. Draw a line that is the same length as the crayon.
Answer:
Question 4.
a. A marker is _____ inches.
Answer:
A marker is _6____ inches.
b. Draw a line that is the same length as the marker.
Answer:
Question 5.
a. What is the longest item that you measured?
Answer:
The longest item that i measured is Pencil which is 7 inches.
b. How long is the longest item? ______ inches
Answer:
The longest item is 7 inch long.
c. How long is the shortest item? _______ inches
Answer:
The shortest item is 3 inch long and it is an eraser.
d. What is the difference in length between the longest and the shortest items? _____ inches
Answer:
e. Draw a line that is the same as the length you found in (d).
Answer:
Question 6.
Measure and label the length of each side of the triangle using your ruler.
a. Which side is the shortest?
1. Side A
2. Side B
3. Side C
Answer:
Side A = 5 inches
Side B = 4 inches
Side C = 3 inches
The shortest side is Side C with 3 inches.
b. What is the length of Side A? ______ inches
Answer:
The length of Side A = 5 inches.
c. What is the length of Sides C and B together? _____ inches
Answer:
The length of Side C and B together is 3 + 4 = 7 inches.
d. What is the difference between the shortest and longest sides? _____ inches
Answer:
The difference between the shortest and the longest side is
5 – 3 = 2 inches.
Question 7.
Solve.
a. ______ inches = 1 foot
Answer:
1 foot equal to 12 inches.
_12__ inches = 1 foot
b. 5 inches + ______ inches = 1 foot
Answer:
1 foot = 12 inches
12 inches – 5 inches = 7 inches
5 inches + _7__inches = 1 foot
c. ______ inches + 4 inches = 1 foot
Answer:
1 foot = 12 inches
12 inches – 4 inches = 8 inches
_8__ inches + 4 inches = 1 foot
Eureka Math Grade 2 Module 7 Lesson 15 Exit Ticket Answer Key
Question 1.
Measure and label the sides of the shape below.
Answer:
Question 2.
What is the sum of the length of Side B and the length of Side C? ______ inches
Answer:
Eureka Math Grade 2 Module 7 Lesson 15 Homework Answer Key
Measure the length of each household object with your ruler, and then use your ruler to draw a line equal to the length of each object in the space provided.
Question 1.
a. A dinner fork is _____ inches.
Answer:
A dinner fork is __7___ inches.
b. Draw a line that is the same length as the fork.
Answer:
Question 2.
a. A tablespoon is ______ inches.
Answer:
A tablespoon is __8____ inches.
b. Draw a line that is the same length as the tablespoon.
Answer:
Measure two other household objects.
Question 3.
a. ______ is ______ inches.
Answer:
A Tea Glass is 3 inches.
b. Draw a line that is the same length as the ________.
Answer:
Question 4.
a. _________ is ______ inches.
Answer:
The Curry Spoon is 10 inches.
b. Draw a line that is the same length as the_________.
Answer:
Question 5.
a. What was the longest object you measured?
Answer:
The longest object i measured is Curry Spoon.
b. What was the shortest object you measured?
Answer:
The shortest object i measured is the Tea Glass.
c. The difference between the longest object and the shortest object is _______ inches.
Answer:
The difference between the shortest and longest object is
10 inches – 3 inches = 7 inches.
Question 6.
Measure and label the length of each side of each shape in inches using your ruler.
a. The longer side of the rectangle is _______ inches.
Answer:
The longer side of the rectangle is __4_____ inches.
b. The shorter side of the rectangle is _______ inches.
Answer:
The shorter side of the rectangle is __2_____ inches.
c. The longer side of the rectangle is _______ inches longer than the shorter side of the rectangle.
Answer:
The longer side of the rectangle is __4 – 2 = 2_ inches longer than the shorter side of the rectangle
d. The shortest side of the trapezoid is _______ inches.
Answer:
The shortest side of the trapezoid is __1_____ inches.
e. The longest side of the trapezoid is _______ inches.
Answer:
The longest side of the trapezoid is __3_____ inches.
f. The longest side of the trapezoid is _______ inches longer than the shortest side.
Answer:
The longest side of the trapezoid is __3 – 1 = 2_____ inches longer than the shortest side.
g. Each side of the hexagon is _______ inches.
Answer:
Each side of the hexagon is __1_____ inches.
h. The total length around the hexagon is _______ inches.
Answer:
The total length around the hexagon is __6_____ inches.
1 + 1 + 1 +1 + 1 +1 = 6 inches
6 sides .
