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## McGraw-Hill Math Grade 3 Answer Key Chapter 9 Lesson 8 Problem Solving: Volume and Mass

**Solve**

**Read. Choose the correct operation and solve.**

Question 1.

Dr. Torres pours water into 2 containers. How much water did she pour in all?

Answer:

Given,

Dr. Torres pours water into 2 containers.

By seeing the above containers we can add the quantity.

1 + 3 = 4

She poured 4 liters in all.

Question 2.

A nickel has a mass of 5 grams. A dime has a mass of about 3 grams. Shari has 4 nickels and 1 dime. What is the mass of all 5 coins?

Answer:

Given,

A nickel has a mass of 5 grams.

A dime has a mass of about 3 grams.

Shari has 4 nickels and 1 dime.

5 × 4 = 20

1 × 3 = 3

20 + 3 = 23 grams

The mass of all 5 coins is 23 grams.

Question 3.

Megan used 36 liters of water to fill some fishbowls at the pet shop. She poured 4 liters into each bowl. How many fishbowls did she fill?

Answer:

Given,

Megan used 36 liters of water to fill some fishbowls at the pet shop.

She poured 4 liters into each bowl.

36 ÷ 4 = 9

Thus Megan fills water into 9 bowls.