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

Use This Worksheet

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

Adding Three Numbers

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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?

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

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

True

False

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

True

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?

Practice composing and decomposing numbers up to 1,000 with this Grade 3 math worksheet, focusing on place value and addition strategies.

Practice adding two-digit numbers with regrouping, a key skill for Grade 3 math.

Practice adding zero with this worksheet for 3rd graders, focusing on the identity property of addition.

Practice adding three-digit numbers with and without regrouping.