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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. 80 + 10 = ______
  2. 46 − 10 = ______
  3. 79 + 10 = ______
  4. 8 × 10 = ______
  5. 21 + 20 = ______
  6. 68 + 10 = ______
  7. 3 × 10 = ______
  8. 18 + 10 = ______
  9. 87 − 10 = ______
  10. 26 − 10 = ______
  11. 60 − 10 = ______
  12. 23 − 10 = ______
  13. 74 + 10 = ______
  14. 29 + 10 = ______
  15. 6 × 10 = ______
  16. 35 + 20 = ______
  17. 36 + 20 = ______
  18. 65 + 10 = ______
  19. 72 + 20 = ______
  20. 73 + 20 = ______