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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. 56 + 20 = ______
  2. 5 × 10 = ______
  3. 7 × 10 = ______
  4. 14 + 10 = ______
  5. 2 × 10 = ______
  6. 37 − 10 = ______
  7. 1 × 10 = ______
  8. 9 × 10 = ______
  9. 74 + 10 = ______
  10. 91 − 10 = ______
  11. 73 + 20 = ______
  12. 86 − 10 = ______
  13. 4 × 10 = ______
  14. 60 + 10 = ______
  15. 89 + 20 = ______
  16. 51 + 10 = ______
  17. 56 + 10 = ______
  18. 40 + 20 = ______
  19. 23 + 20 = ______
  20. 88 + 20 = ______