All the solutions provided in **McGraw Hill Math Grade 5 Answer Key PDF Chapter 4 Lesson 7 Dividing Decimals by Powers of Ten** are as per the latest syllabus guidelines.

## McGraw-Hill Math Grade 5 Answer Key Chapter 4 Lesson 7 Dividing Decimals by Powers of Ten

**Write the missing numbers.**

Question 1.

1.5 ÷ 10^{3} =

1.5 ÷ (10 × 10 × 10) =

1 ÷ (10 × __10__ × 10) + 0.5 ÷ (__10__ × 10 × 10) =

(__0.001__) + (0.0005) = __0.00015__

Answer:

1.5 ÷ 10^{3} = 0.00015.

Explanation:

Given the expression is 1.5 ÷ 10^{3} which is

= 1.5 ÷ 10 × 10 × 10

= 1 ÷ (10 × 10 × 10) + 0.5 ÷ (10 × 10 × 10)

= 0.001 + 0.0005

= 0.00015.

Question 2.

0.9 + 10^{2} =

0.9 ÷ (_________ × _________)

0.9 ÷ (100) = _____

Answer:

Explanation:

Given the expression is 0.9 + 10^{2} which is

= 0.9 + 10^{2}

= 0.9 + (10×10)

= 0.9 + 100

= 100.9

**Estimate. Then divide.**

Question 3.

17.76 ÷ 10^{2} = Estimate: _____

Quotient: _____

Answer:

17.76 ÷ 10^{2} = 0.1776.

Explanation:

Given the expression is 17.76 ÷ 10^{2} which is

= 17.76 ÷ (10 × 10)

= 17.76 ÷ 100

= 0.1776

Question 4.

10.24 ÷ 10^{3} = Estimate: _____

Quotient: _______

Answer:

10.24 ÷ 10^{3} = 0.01024.

Explanation:

Given the expression is 10.24 ÷ 10^{3} which is

= 10.24 ÷ (10 × 10 × 10)

= 10.24 ÷ 1000

= 0.01024.