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## McGraw-Hill Math Grade 3 Answer Key Chapter 5 Lesson 2 Dividing by 3

**Solve.**

**Divide. Use repeated subtraction or objects to help.**

Question 1.

21 ÷ 3 = ___

Answer:

21 ÷ 3 = 7

Explanation:

Use Repeated subtraction:

21 – 3 = 18, 18 – 3 = 15, 15 – 3 = 12, 12 – 3 = 9, 9 – 3 = 6, 6 – 3 = 3 and 3 – 3 = 0

I subtracted 21 with 3 seven times

So, 21 ÷ 3 = 7.

Question 2.

9 ÷ 3 = ___

Answer:

9 ÷ 3 = 3

Explanation:

Use Repeated subtraction:

9 – 3 = 6, 6 – 3 = 3 and 3 – 3 = 0

I subtracted 9 with 3 three times

So, 9 ÷ 3 = 3.

Question 3.

15 ÷ 3 = ___

Answer:

15 ÷ 3 = 5

Explanation:

Use Repeated subtraction:

15 – 3 = 12, 12 – 3 = 9, 9 – 3 = 6, 6 – 3 = 3 and 3 – 3 = 0

I subtracted 15 with 3 five times

So, 15 ÷ 3 = 5.

Question 4.

0 ÷ 3 = ___

Answer:

0 ÷ 3 = 0

Explanation:

Use Repeated subtraction:

Zero divided by any number is 0

So, 0 ÷ 3 = 0.

Question 5.

Answer:

Explanation:

6 ÷ 3 = 2

Six divided by three is two.

Question 6.

Answer:

Explanation:

3 ÷ 3 = 1

Three divided by three is one.

Question 7.

Answer:

Explanation:

18 ÷ 3 = 6

Eighteen divided by three is six.

Question 8.

Answer:

Explanation:

27 ÷ 3 = 9

Twenty seven divided by three is nine.

Question 9.

Ava is putting 24 baseball cards in an album. Each page can hold 3 baseball cards. How many pages can Ava fill?

____ ÷ ____ = ___ pages

Answer:

Explanation:

Ava is putting 24 baseball cards in an album

Each page can hold 3 baseball cards

24 ÷ 3 = 8 pages

Ava can fill 8 pages using 24 baseball cards.