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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. 36 + 20 = ______
  2. 43 + 20 = ______
  3. 14 + 10 = ______
  4. 79 − 10 = ______
  5. 7 × 10 = ______
  6. 8 × 10 = ______
  7. 80 + 20 = ______
  8. 72 − 10 = ______
  9. 30 + 20 = ______
  10. 52 + 10 = ______
  11. 86 + 20 = ______
  12. 88 − 10 = ______
  13. 53 + 10 = ______
  14. 76 + 20 = ______
  15. 71 + 10 = ______
  16. 60 − 10 = ______
  17. 89 + 20 = ______
  18. 61 + 20 = ______
  19. 17 + 20 = ______
  20. 40 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath