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Medium — core practice

Addition · 3rd Grade

Addition · 3rd · medium

Instructions: Solve each problem. Write the answer on the line. Try to add as quickly and accurately as you can.

  1. 7 + 8 =
  2. 21 + 18 =
  3. 11 + 16 =
  4. 10 + 17 =
  5. 14 + 15 =
  6. 21 + 19 =
  7. 16 + 23 =
  8. 2 + 14 =
  9. 18 + 9 =
  10. 11 + 17 =

+ 14 more in the PDF

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Teacher reference

1. 7 + 8 =

Answer: 15

Steps: 7 + 8 = 15

2. 21 + 18 =

Answer: 39

Steps: 21 + 18 = 39

3. 11 + 16 =

Answer: 27

Steps: 11 + 16 = 27

4. 10 + 17 =

Answer: 27

Steps: 10 + 17 = 27

5. 14 + 15 =

Answer: 29

Steps: 14 + 15 = 29

6. 21 + 19 =

Answer: 40

Steps: 21 + 19 = 40

7. 16 + 23 =

Answer: 39

Steps: 16 + 23 = 39

8. 2 + 14 =

Answer: 16

Steps: 2 + 14 = 16

+ 17 more solutions on the answer key page.