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Adding Three Single-Digit Numbers

Practice adding three single-digit numbers with this engaging worksheet for third graders. Develop mental math skills and number sense.

Grade 3 Math AdditionAddition StrategiesAdding Three Single Digit Numbers
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Includes

Fill in the Blanks2 Short AnswerMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.2.OA.B.2

Topics

mathadditionsingle digitgrade 3number sense
7 sections · Free to use · Printable
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Adding Three Single-Digit Numbers

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Date:

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Read each question carefully and find the sum of the three numbers. Show your work on the number lines where provided.

1. 2 + 3 + 4 =  

2. 1 + 5 + 2 =  

3. 6 + 1 + 3 =  

4. 4 + 0 + 5 =  

5. Use the number line to solve 3 + 2 + 1.

012345678910

6. Which sum is equal to 10?

a

3 + 3 + 3

b

4 + 2 + 5

c

2 + 8 + 0

d

1 + 1 + 1

7. The sum of 7 + 2 + 1 is 10.

T

True

F

False

8. Adding 0 to any three numbers changes their sum.

T

True

F

False

9. Sarah has 3 red apples, 2 green apples, and 4 yellow apples. How many apples does she have in total?

10. A baker made 5 chocolate cookies, 3 vanilla cookies, and 1 oatmeal cookie. How many cookies did the baker make?