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Adding Decimals Worksheet

Practice adding decimals with various levels of difficulty, including word problems, for 8th-grade students.

Grade 8 Math DecimalsAdding Decimals
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Includes

Fill in the Blanks2 Short AnswerMultiple ChoiceTrue / FalseLong Answer

Standards

CCSS.MATH.CONTENT.7.NS.A.3

Topics

decimalsadditionmathgrade 8
8 sections · Free to use · Printable
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Adding Decimals Practice

Name:

Date:

Score:

Read each question carefully and solve for the sum. Show your work where indicated.

1. 3.45 + 1.2 =  

2. 0.75 + 0.25 =  

3. 12.01 + 5.9 =  

4. 8.3 + 2.75 =  

5. Use the number line to show the sum of 1.5 + 2.0. What is the result?

0 1 2 3 4 5

6. Which of the following is the correct sum of 4.67 + 2.3?

a

6.97

b

7.00

c

6.79

d

7.97

7. Sarah bought a book for $15.75 and a pen for $2.50. How much did she spend in total?

8. A recipe calls for 0.75 cups of flour and 0.2 cups of sugar. If you combine them, what is the total amount of dry ingredients?

9. When adding decimals, it is important to align the decimal points.

T

True

F

False

10. The sum of 0.1 + 0.01 is 0.011.

T

True

F

False

11. A swimmer completed three laps. The first lap was 28.35 seconds, the second was 29.1 seconds, and the third was 27.88 seconds. What was the swimmer's total time for all three laps? Explain your steps.