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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. 84 + 10 = ______
  2. 57 + 10 = ______
  3. 80 + 10 = ______
  4. 42 + 20 = ______
  5. 32 − 10 = ______
  6. 91 − 10 = ______
  7. 7 × 10 = ______
  8. 37 + 10 = ______
  9. 22 + 20 = ______
  10. 57 − 10 = ______
  11. 8 × 10 = ______
  12. 87 + 20 = ______
  13. 48 + 20 = ______
  14. 83 − 10 = ______
  15. 28 − 10 = ______
  16. 25 − 10 = ______
  17. 78 + 10 = ______
  18. 44 + 10 = ______
  19. 66 + 20 = ______
  20. 32 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath