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## McGraw-Hill Math Grade 3 Answer Key Chapter 5 Lesson 9 Problem Solving

**Solve**

**Decide which facts you need. Then solve.**

Question 1.

Mr. Williams arranges his class into 3 groups for story time. There are 5 students in each group. Each group reads 4 books. How many students are in Mr. Williams’s class?

Answer:

15 books

Explanation:

Mr. Williams arranges his class into 3 groups for story time

There are 5 students in each group

Each group reads 4 books

We need to find the number of children in Mr. William’s class

Multiply to find

3 groups x 5 students = 15 students

So, thee are 15 students in Mr. William’s class.

Question 2.

Luis is putting stickers in his journal. Each sticker is 1 inch long. He sets them in 3 rows of 4. How many stickers does Luis have? Write a division equation for this problem and solve.

Answer:

Explanation:

Luis is putting stickers in his journal. Each sticker is 1 inch long

He sets them in 3 rows of 4

The division equation that solves this problem is

? ÷ 4 = 3

Multiply to find the answer

4 x 3 = 12

So, Luis have 12 stickers.