Engage NY Eureka Math 3rd Grade Module 2 Lesson 15 Answer Key
Eureka Math Grade 3 Module 2 Lesson 15 Problem Set Answer Key
Question 1.
Find the sums below. Choose mental math or the algorithm.
a. 46 mL + 5 mL
Answer:
46 mL + 5 mL=51ml
Explanation:
46ml+4ml+1ml 5ml
=50ml+1ml /\
=50ml 4 1
46 mL + 5 mL=51ml
b. 46 mL + 25 mL
Answer:
46 mL + 25 mL=71ml
Explanation:
46ml+5ml+20ml 25ml
=51ml+20ml /\
=71ml 5 20
46 mL + 25 mL=71ml
c. 46 mL + 125 mL
Answer:
46ml+125ml=171ml
Explanation:
46ml+25ml+100ml 125ml
=71ml+100ml /\
=171ml 25 100
46 mL + 125 mL=171ml
d. 59 cm + 30 cm
Answer:
59cm+30cm=89cm
Explanation:
59cm+30cm=89cm
e. 509 cm + 83 cm
Answer:
509cm+83cm=592cm
Explanation:
509cm+1cm+82cm 83cm
=510cm+82cm /\
=592cm 1 82
509cm+83cm=592cm
f. 597 cm + 30 cm
Answer:
597 cm + 30 cm=627cm
Explanation:
597cm+3cm+27cm 30cm
=600cm+2cm /\
=627cm 3 27
597 cm + 30 cm=627cm
g. 29 g + 63 g
Answer:
29g+63g=92g
Explanation:
29g+1g+62g 63g
=30g+62g /\
=92g 1 62
29g+63g=92g
h. 345 g + 294 g
Answer:
345g+294g=639g
i. 480 g + 476 g
Answer:
480 g + 476 g=956g
j. 1 L 245 mL + 2 L 412 mL
Answer:
1 L 245 mL + 2 L 412 mL=3L 657mL
Explanation:
1L+2L=3L
245ml+412ml
245ml+412ml=657ml
1 L 245 mL + 2 L 412 mL=3L 657mL
k. 2 kg 509 g + 3 kg 367 g
Answer:
2 kg 509 g + 3 kg 367 g=5 kg 876g
Explanation:
2 kg+3 kg=5kg
509g+367g=509g+1g+366g 367g
=510g+366g /\
=876g 1 366
2 kg 509 g + 3 kg 367 g=5 kg 876g
Question 2.
Nadine and Jen buy a small bag of popcorn and a pretzel at the movie theater. The pretzel weighs 63 grams more than the popcorn. What is the weight of the pretzel?
Answer:
The pretzel weighs 107 grams
Explanation:
Nadine and Jen buy a small bag of popcorn and a pretzel at the movie theater. The pretzel weighs 63 grams more than the popcorn
44+63=107
Therefore, the pretzel weighs 107 grams
Question 3.
In math class, Jason and Andrea find the total liquid volume of water in their beakers. Jason says the total is 782 milliliters, but Andrea says it is 792 milliliters. The amount of water in each beaker can be found in the table to the right. Show whose calculation is correct. Explain the mistake of the other student.
| Student | Liquid Volume |
| Jason | 475 mL |
| Andrea | 317 mL |
Answer:
The total liquid volume of water in Jason’s and Andrea’s beakers is 792mL
Explanation:
Andrea is correct.Jason forgot to rename some ones as tens.Or he forgot to add the ten he renamed to the 7tens and 1ten that were already there.
Question 4.
It takes Greg 15 minutes to mow the front lawn. It takes him 17 more minutes to mow the back lawn than the front lawn. What is the total amount of time Greg spends mowing the lawns?
Answer:
The total amount of time Greg spends mowing the lawns is 47min
Eureka Math Grade 3 Module 2 Lesson 15 Exit Ticket Answer Key
Question 1.
Find the sums below. Choose mental math or the algorithm.
a. 24 cm + 36 cm
Answer:
24cm+36cm=60cm
Explanation:
24cm+6cm+30cm 36cm
=30cm+30cm /\
=60cm 6 30
24cm+36cm=60cm
b. 562 m + 180 m
Answer:
562m+180m=742m
c. 345 km + 239 km
Answer:
345km+239km=584km
Question 2.
Brianna jogs 15 minutes more on Sunday than Saturday. She jogged 26 minutes on Saturday.
a. How many minutes does she jog on Sunday?
Answer:
Barianna jogs on Sunday for 41 minutes
Explanation:
Brianna jogs 15 minutes more on Sunday than Saturday.She jogged 26 minutes on Saturday
Add 15min+26min to find the time he jogs on sunday
=15min+5min+21min 26min
=20min+21min /\
=41min 5 21
15min+26min=41min
Barianna jogs on Sunday for 41 minutes
b. How many minutes does she jog in total?
Answer:
67 minutes
Explanation:
Barianna jogs on Sunday for 41 minutes, She jogged 26 minutes on Saturday.
Add 41min+26min
=40min+1min+26min 41min
=40min+27min /\
=47min 40 1
41min+26min=47min
Barianna jogs for 47min in total.
Eureka Math Grade 3 Module 2 Lesson 15 Homework Answer Key
Question 1.
Find the sums below. Choose mental math or the algorithm.
a. 75 cm + 7 cm
Answer:
75cm+7cm=82cm
Explanation:
75cm+7cm 7cm
=75cm+5cm+2cm /\
=80cm+2cm 5 2
82cm
75cm+7cm=82cm
b. 39 kg + 56 kg
Answer:
39kg+56kg=95kg
Explanation:
39kg+56kg 56kg
=39kg+1kg+55kg /\
=40kg+55kg 1 55
=95kg
39kg+56kg=95kg
c. 362 mL + 229 mL
Answer:
362ml+229ml=591ml
d. 283 g + 92 g
Answer:
283g+92g=375g
e. 451 mL + 339 mL
Answer:
451ml+339ml=790ml
f. 149 L + 331 L
Answer:
149L+331L=480L
Question 2.
The liquid volume of five drinks is shown below.
| Drink |
Liquid Volume |
|
Apple juice |
125 mL |
|
Milk |
236 mL |
| Water |
248 mL |
| Orange juice |
174 mL |
| Fruit punch |
208 mL |
a. Jen drinks the apple juice and the water. How many milliliters does she drink in all?
Jen drinks ________ mL.
Answer:
Jen drinks 373 mL.
b. Kevin drinks the milk and the fruit punch. How many milliliters does he drink in all?
Answer:
Kevin drinks 444ml
Question 3.
There are 75 students in Grade 3. There are 44 more students in Grade 4 than in Grade 3. How many students are in Grade 4?
Answer:
Explanation:
There are 75 students in Grade 3 and there are 44 ore students in grade4 than in grade3.So, add 75 and 44
75+44=119
Therefore, there are 119 students in Grade 4.
Question 4.
Mr. Green’s sunflower grew 29 centimeters in one week. The next week it grew 5 centimeters more than the previous week. What is the total number of centimeters the sunflower grew in 2 weeks?
Answer:
Explanation:
Mr. Green’s sunflower grew 29 centimeters in one week. The next week it grew 5 centimeters more than 1st week.
29+5=34cm
It grew 34cm in second week
Both 2 weeks
29 centimeters in one week and 34 centimeters in second week
29+34=63centimeter.
63 is the total number of centimeters the sunflower grew in 2 weeks
Question 5.
Kylie records the weights of 3 objects as shown below. Which 2 objects can she put on a pan balance to equal the weight of a 460 gram bag? Show how you know.
| Paperback Book
343 grams |
Banana
108 grams |
Bar of Soap 117 grams |
Answer:
The 2 objects can she put on a pan balance to equal the weight of a 460 gram bag are Paperback Book and Bar of Soap.
Explanation:
Total weight of Paperback Book and banana is 343+108= 451gram
Total weight of Paperback Book and Bar of Soap is 343+117=460grams.
Eureka Math Grade 3 Module 2 Answer Key