Practice the questions of **McGraw Hill Math Grade 4 Answer Key** **PDF Chapter 5 Lesson 7 Problem Solving: Reasonable Answers** to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 4 Answer Key Chapter 5 Lesson 7 Problem Solving: Reasonable Answers

**Solve**

**Make an estimate to show that each answer is reasonable.**

Question 1.

Ms. Hunter spends $42 a week on groceries. How much money will she spend in 52 weeks?

__Estimate: $2,000; Answer: $2,184__

So far this year, Ms. Hunter has spent $1,324 on groceries. How much more will she spend this year?

________________

Answer:

Explanation:

2100 – 1300 = 800 he spend this year

Question 2.

There are 12 large cages in a pet store. The owner puts 18 birds in each cage. How many birds are in the pet store?

Answer:

Explanation:

There are 12 large cages

in each cage 18 birds

so, 12 x 18 = 216

total 216 birds.

Question 3.

A children’s library room has 6,729 children’s nonfiction books, 4,902 picture books, and 5,886 children’s fiction books. How many children’s books doés the library have in all?

Answer:

Library has 18000 books in all.

Explanation:

6,729 children’s nonfiction books

5,886 children’s fiction books

4,902 picture books

so, 6729 + 5886 + 4902 = 17517 books

we can estimate as 7000 + 5000 + 6000 = 18000 books