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Addition Within 20 Worksheet (Free Printable)

A free printable addition within 20 worksheet with 30 questions and an answer key, for 1st Grade and 2nd Grade. Print it, make a new set of questions, or practice online with Addition Adventure.

Addition within 20Name: ____________________Date: ____________Score: ____ / 30
  1. 3 + 5 =
  2. 0 + 5 =
  3. 5 + 8 =
  4. 9 + 6 =
  5. 0 + 6 =
  6. 10 + 2 =
  7. 1 + 3 =
  8. 3 + 12 =
  9. 0 + 10 =
  10. 0 + 4 =
  11. 12 + 0 =
  12. 5 + 0 =
  13. 12 + 7 =
  14. 4 + 5 =
  15. 8 + 0 =
  16. 10 + 3 =
  17. 2 + 6 =
  18. 12 + 2 =
  19. 15 + 0 =
  20. 9 + 5 =
  21. 2 + 10 =
  22. 4 + 0 =
  23. 10 + 0 =
  24. 11 + 6 =
  25. 5 + 12 =
  26. 2 + 12 =
  27. 3 + 4 =
  28. 16 + 0 =
  29. 3 + 10 =
  30. 16 + 1 =

Free from Success Tutoring Games · games.successtutoring.com

Tip

Count on from the bigger number, and use number bonds to 10: 8 + 5 = 8 + 2 + 3 = 13.

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Practice online

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