## Engage NY Eureka Math 3rd Grade Module 2 Lesson 12 Answer Key

### Eureka Math Grade 3 Module 2 Lesson 12 Problem Set Answer Key

Question 1.

Work with a partner. Use a ruler or a meter stick to complete the chart below.

Answer:

Question 2.

Work with a partner. Use a digital scale to complete the chart below.

Answer:

Question 3.

Work with a partner. Use a beaker to complete the chart below.

Answer:

Question 4.

Work with a partner. Use a clock to complete the chart below.

Answer:

### Eureka Math Grade 3 Module 2 Lesson 12 Exit Ticket Answer Key

The weight of a golf ball is shown below.

Answer:

a. The golf ball weighs _________________.

Answer:

The golf ball weighs 46grams

b. Round the weight of the golf ball to the nearest ten grams. Model your thinking on the number line.

Answer:

The weight 46g is between 40g and 50g

The nearest tens is 50g

Label the numberline and mark on the number 50.

c. The golf ball weighs about _________________.

Answer:

The golf ball weighs about 50g

d. Explain how you used the halfway point on the number line to round to the nearest ten grams.

Answer:

I used the half point as 45g and rounded of it to the nearest tens.As the weight of golfball is 46g it is near to 50g.

### Eureka Math Grade 3 Module 2 Lesson 12 Homework Answer Key

Question 1.

Complete the chart. Choose objects, and use a ruler or meter stick to complete the last two on your own.

Answer:

Question 2.

Gym class ends at 10:27 a.m. Round the time to the nearest 10 minutes.

Gym class ends at about ______ a.m.

Answer:

Gym class ends at about 10:30 a.m

Explanation:

The Gym class ends at 10:27am

10:27 is between 10:20 and 10:30am

The nearest tens is 10:30am

Therefore, Gym class ends at about 10:30 a.m

Question 3.

Measure the liquid in the beaker to the nearest 10 milliliters.

There are about _________ milliliters in the beaker.

Answer:

The liquid in the beaker is between 20ml and 30ml

As the liquid is near to 20ml

So, There are about 20milliliters in the beaker.

Question 4.

Mrs. Santos’ weight is shown on the scale. Round her weight to the nearest 10 kilograms.

Mrs. Santos’ weight is _________ kilograms.

Mrs. Santos weighs about _________ kilograms.

Answer:

Mrs. Santos’ weight is 53 kilograms.

Mrs. Santos weighs about 50 kilograms

Explanation:

As shown n the picture Mrs.Santos weighs 53 kg

53 is between 50 and 60kg

If we round of 53 to the nearest 10kg, the weight of Mrs.Santos wiil be about 50kg.

Question 5.

A zookeeper weighs a chimp. Round the chimp’s weight to the nearest 10 kilograms.

The chimp’s weight is ________ kilograms.

The chimp weighs about __________ kilograms.

Answer:

The chimp’s weight is 58 kilograms.

The chimp weighs about 60 kilograms.

Explanation:

As shown in the above picture the weight of the chimp is 58kilograms

The weight of the chimp is 58 is between 50kg and 60kg

If we round of to the nearest tens the weight of the chimp is 60kilograms.