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Adding Three Numbers Worksheet

Practice adding three single-digit and double-digit numbers with this Grade 3 math worksheet.

Grade 3 Math AdditionAdding Three Numbers
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Includes

2 Short AnswerFill in the BlanksMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.2.NBT.B.5CCSS.MATH.CONTENT.3.NBT.A.2

Topics

additionthree numbersgrade 3math
7 sections · Free to use · Printable
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Adding Three Numbers

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Date:

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Read each problem carefully and add the three numbers to find the sum. Show your work in the space provided.

1. Add: 3 + 5 + 2 =

2. Add: 7 + 1 + 4 =

3. Add: 6 + 0 + 8 =

4. 10 + 5 + 3 =  

5. 12 + 4 + 6 =  

6. 9 + 11 + 2 =  

7. Which sum is correct for 15 + 10 + 5?

a

20

b

25

c

30

d

35

8. What is the sum of 8, 7, and 3?

a

16

b

18

c

19

d

20

9. The sum of 20, 10, and 5 is 35.

T

True

F

False

10. Adding three numbers always results in a larger number.

T

True

F

False

11. Sarah has 12 red apples, 8 green apples, and 6 yellow apples. How many apples does she have in total?

12. A baker made 25 chocolate cookies, 15 oatmeal cookies, and 10 sugar cookies. How many cookies did the baker make altogether?