Practice the problems of Math in Focus Grade 4 Workbook Answer Key Chapter 8 Practice 1 Adding Decimals to score better marks in the exam.

## Math in Focus Grade 4 Chapter 8 Practice 1 Answer Key Adding Decimals

**Fill in the blanks. Write each sum as a decimal.**

Example

0.3 + 0.5 = __3__ tenths + __5__ tenths

= __8__ tenths

= __0.8__

Question 1.

0.8 + 0.2 = ___ tenths + ___ tenths

= ____ tenths

= ____

Answer:

0.8 + 0.2 = 0.10.

Explanation:

0.8 + 0.2 = 8 tenths + 2 tenths

= 10 tenths

= 1.0.

Question 2.

0.7 + 0.7 = ___ tenths + ___ tenths

= ____ tenths

= ____

Answer:

0.7 + 0.7 = 1.4.

Explanation:

0.7 + 0.7 = 7 tenths + 7 tenths

= 14 tenths

= 1.4.

Question 3.

0.9 + 0.8 = ___ tenths + ___ tenths

= ____ tenths

= ____

Answer:

0.9 + 0.8 = 1.7.

Explanation:

0.9 + 0.8 = 9 tenths + 8 tenths

= 17 tenths

= 1.7.

**Fill in the blanks.
**Question 4.

Add the tenths.

8 tenths + 6 tenths = ___ tenths

Regroup the tenths.

___ tenths = __ one and __ tenths.

Add the ones.

4 ones + 3 ones + ____ one = ___ ones

So, 4.8 + 3.6 =

Answer:

4.8 + 3.6 = 8.4.

Explanation:

Add the tenths.

8 tenths + 6 tenths = 14 tenths

Regroup the tenths.

14 tenths = 1 one and 4 tenths.

Add the ones.

4 ones + 3 ones + 1 one = 8 ones

**Add.
**Question 5.

Answer:

8.5 + 2.3 = 10.8.

Explanation:

Step 1:

Add the tenths.

5 tenths + 3 tenths = 8 tenths

Step 2:

Add the ones.

8 ones + 2 ones = 10 ones.

Question 6.

Answer:

6.6 + 1.6 = 8.2.

Explanation:

Add the tenths.

6 tenths + 6 tenths = 12 tenths.

Regroup the tenths.

12 tenths = 1 one and 2 tenths.

Add the ones.

6 ones + 1 ones + 1 one = 8 ones

**Write in vertical form. Then add.
**Question 7.

15.7 + 3.8 = ___

Answer:

15.7 + 3.8 = 19.5.

Explanation:

Question 8.

22.9 + 7.2 = ___

Answer:

22.9 + 7.2 = 30.1.

Explanation: