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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. 43 + 20 = ______
  2. 61 + 20 = ______
  3. 6 × 10 = ______
  4. 22 + 10 = ______
  5. 86 − 10 = ______
  6. 5 × 10 = ______
  7. 65 + 20 = ______
  8. 4 × 10 = ______
  9. 13 + 10 = ______
  10. 19 + 10 = ______
  11. 52 + 10 = ______
  12. 75 + 10 = ______
  13. 35 + 10 = ______
  14. 51 + 20 = ______
  15. 86 + 20 = ______
  16. 7 × 10 = ______
  17. 61 − 10 = ______
  18. 1 × 10 = ______
  19. 52 + 20 = ______
  20. 76 + 10 = ______