# McGraw Hill Math Grade 4 Chapter 6 Lesson 5 Answer Key Using Mental Math to Divide

Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 6 Lesson 5 Using Mental Math to Divide to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 4 Answer Key Chapter 6 Lesson 5 Using Mental Math to Divide

Divide

Use mental math to find each quotient.

Question 1.
18 ÷ 9 = 2
18 ÷ 9 = 2
Explanation:
Multiplication and division are inversely proportional
9 x 2 = 18

Question 2.
180 ÷ 9 = ___
180 ÷ 9 = 20
Explanation:
Multiplication and division are inversely proportional
9 x 2 = 18

Question 3.
1,800 ÷ 9 = ____
1,800 ÷ 9 = 200
Explanation:
Multiplication and division are inversely proportional
9 x 2 = 18

Question 4.
14 ÷ 2 = ___
14 ÷ 2 = 7
Explanation:
Multiplication and division are inversely proportional
2 x 7 = 14

Question 5.
140 ÷ 2 = ___
140 ÷ 2 = 70
Explanation:
Multiplication and division are inversely proportional
2 x 7 = 14

Question 6.
1,400 ÷ 2 = ___
1,400 ÷ 2 = 700
Explanation:
Multiplication and division are inversely proportional
2 x 7 = 14

Question 7.
360 ÷ 6 = ___
360 ÷ 6 = 6
Explanation:
Multiplication and division are inversely proportional
6 x 6 = 36

Question 8.
450 ÷ 5 = ___
450 ÷ 5 = 90
Explanation:
Multiplication and division are inversely proportional
5 x 9 = 45

Question 9.
320 ÷ 8 = ___
320 ÷ 8 = 40
Explanation:
Multiplication and division are inversely proportional
8 x 4 = 32