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## McGraw-Hill Math Grade 3 Answer Key Chapter 11 Lesson 7 Problem Solving

**Solve**

**Use a pattern to solve each problem**

Question 1.

Look at the pattern of shapes to the right. Fill in the last two shapes to continue the pattern.

Answer:

Explanation:

I filled the last two shapes to continue the pattern

I filled the bottom triangle in the last but one triangle

I filled the left triangle in the last triangle.

Question 2.

Anna is building a figure with 9 cans at the base. Each row has one less can than the row below. How many cans are in the fifth row she builds? _______

Answer:

5 cans

Explanation:

Anna is building a figure with 9 cans at the base

Each row has one less can than the row below

There will be 5 cans in the fifth row as 9 – 4 = 5.

Question 3.

Diego reads the first 10 pages of his book on Monday. He reads 3 pages more each day than the day before. How many pages will he read on Friday?

Answer:

16 pages

Explanation:

Diego reads the first 10 pages of his book on Monday

He reads 3 pages more each day than the day before

He reads 10 pages on Monday

Tuesday 10 + 3 = 13

Wednesday 13 + 3 =Â 16

Thursday 13 + 3 = 19

Friday 19 + 3 = 22

So, Diego reads 22 pages on Friday.

Question 4.

Rearrange the cards to the right to make a pattern. Predict the next 3 cards in the pattern.

Answer:

3, 6, 9, 12, 15, 18, 21, 24

Explanation:

I arranged the cards in the right manner

The pattern is 3, 6, 9, 12, 15

The next 3 cards in the pattern are 18, 21 and 24.

Guess; then test your guess to solve each problem.

Question 5.

Jay bought 2 picture frames. He spent $6.20.

Which 2 picture frames did jay buy?

Answer:

Explanation:

Jay bought Picture frames A and C.