Decimal Practice Questions

DecimalPractice your basic math skills with decimal practice questions.

 

 

1. 2.4 + 3.9 =

a. 6.3
b. 7.3
c. 5.3
d. 6.13

2. 3.34 + 2.13

a. 54.7
b. 5.57
c. 5.47
d. 54.7
3. 6.363 – 1.602

a. 4.011
b.  4.761
c. 47.61
d. 3.761
4. 3.57 – 3.21

a. 03.6
b. 0.036
c. 0.36
d. 0.136
5. Convert 4.358 to percent

a. 435.8%
b. 43.58%
c. 4.358%
d. 4358%


6. Convert 1.21 to percent

a. 121%
b. 12.1%
c. 1.21%
d. 0.121%

7. Convert 75% to decimal

a. 0.0075
b. 0.075
c. 0.75
d. 7.5

8. Convert 39% to decimal

a. 0.49
b. 0.039
c. 3.9
d. 0.39

 

 

 

 

Answer Key

 

1. A
2.4 + 3.9 = 6.3

2. C
3.34 + 2.13 = 5.47

3. B
6.363 – 1.602 = 4.761

4. C
3.57 – 3.21 = 0.36

5. A
To convert to percent, simply multiply the decimal by 100 or move the decimal point 2 places to the right. Therefore, 4.358 x 100 = 435.8%

6. A
To convert to percent, simply multiply the decimal by 100 or move the decimal point 2 places to the right. Therefore, 1.21 x 100 = 121%

7. C
To convert percent to decimal, simply divide the decimal by 100 or move the decimal point 2 places to the left. Therefore, 75 ÷ 100 = 0.75

8. D
To convert percent to decimal, simply divide the decimal by 100 or move the decimal point 2 places to the left. Therefore, 39 ÷ 100 = 0.39

Written by:
Modified: October 2nd, 2017
Published: May 13th, 2014

2 thoughts on “Decimal Practice Questions”

  1. In regards to the answer key
    1. A 6.3 (B is 7.3)
    In regards to the answers for the question
    8. A and D are the same

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