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.
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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.
6. Which sum is equal to 10?
3 + 3 + 3
4 + 2 + 5
2 + 8 + 0
1 + 1 + 1
7. The sum of 7 + 2 + 1 is 10.
True
False
8. Adding 0 to any three numbers changes their sum.
True
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?
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