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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. 14 + 10 = ______
  3. 5 × 10 = ______
  4. 48 − 10 = ______
  5. 74 + 20 = ______
  6. 40 + 20 = ______
  7. 1 × 10 = ______
  8. 27 − 10 = ______
  9. 72 − 10 = ______
  10. 86 + 20 = ______
  11. 2 × 10 = ______
  12. 4 × 10 = ______
  13. 57 + 20 = ______
  14. 28 + 20 = ______
  15. 76 − 10 = ______
  16. 70 − 10 = ______
  17. 71 − 10 = ______
  18. 61 + 10 = ______
  19. 51 + 20 = ______
  20. 64 + 20 = ______