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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. 87 − 10 = ______
  2. 6 × 10 = ______
  3. 68 + 10 = ______
  4. 33 + 10 = ______
  5. 89 + 10 = ______
  6. 17 + 10 = ______
  7. 48 + 20 = ______
  8. 54 − 10 = ______
  9. 66 − 10 = ______
  10. 46 + 20 = ______
  11. 77 − 10 = ______
  12. 39 − 10 = ______
  13. 9 × 10 = ______
  14. 13 + 10 = ______
  15. 75 − 10 = ______
  16. 85 + 10 = ______
  17. 64 + 20 = ______
  18. 55 + 10 = ______
  19. 40 + 20 = ______
  20. 81 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath