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

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:
McGraw-Hill Math Grade 4 Answer Key Chapter 5 img 22
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:
McGraw-Hill Math Grade 4 Answer Key Chapter 5 img 21
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

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