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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. 47 + 10 = ______
  2. 42 + 10 = ______
  3. 33 + 20 = ______
  4. 69 − 10 = ______
  5. 46 − 10 = ______
  6. 7 × 10 = ______
  7. 2 × 10 = ______
  8. 59 − 10 = ______
  9. 52 − 10 = ______
  10. 55 + 20 = ______
  11. 63 + 20 = ______
  12. 61 + 10 = ______
  13. 15 + 10 = ______
  14. 35 + 10 = ______
  15. 53 + 10 = ______
  16. 78 + 10 = ______
  17. 69 + 20 = ______
  18. 5 × 10 = ______
  19. 40 − 10 = ______
  20. 72 − 10 = ______