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Mental Math Worksheet

Recommended for 1st Grade — 5th Grade

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Mental Math Worksheet

Name: ____________________Date: ____________

Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.

20 problems

  1. 3 × 10 = ______
  2. 28 − 10 = ______
  3. 81 + 10 = ______
  4. 32 − 10 = ______
  5. 62 + 10 = ______
  6. 78 + 20 = ______
  7. 55 + 10 = ______
  8. 45 − 10 = ______
  9. 51 − 10 = ______
  10. 22 − 10 = ______
  11. 2 × 10 = ______
  12. 69 − 10 = ______
  13. 78 − 10 = ______
  14. 65 − 10 = ______
  15. 36 + 10 = ______
  16. 23 + 10 = ______
  17. 60 + 10 = ______
  18. 56 − 10 = ______
  19. 39 + 20 = ______
  20. 66 + 20 = ______