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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. 46 − 10 = ______
  2. 50 + 20 = ______
  3. 71 + 20 = ______
  4. 29 + 10 = ______
  5. 61 + 10 = ______
  6. 72 + 20 = ______
  7. 3 × 10 = ______
  8. 19 + 20 = ______
  9. 27 + 10 = ______
  10. 79 + 20 = ______
  11. 7 × 10 = ______
  12. 38 − 10 = ______
  13. 60 − 10 = ______
  14. 88 + 20 = ______
  15. 51 + 20 = ______
  16. 38 + 20 = ______
  17. 35 − 10 = ______
  18. 69 − 10 = ______
  19. 5 × 10 = ______
  20. 83 + 20 = ______