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

## 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.

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? _______
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?
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.

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?