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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. 53 + 10 = ______
  2. 3 × 10 = ______
  3. 19 + 10 = ______
  4. 70 − 10 = ______
  5. 92 − 10 = ______
  6. 54 − 10 = ______
  7. 20 + 20 = ______
  8. 38 − 10 = ______
  9. 79 − 10 = ______
  10. 76 + 20 = ______
  11. 85 − 10 = ______
  12. 56 + 10 = ______
  13. 64 − 10 = ______
  14. 51 + 10 = ______
  15. 44 + 10 = ______
  16. 84 − 10 = ______
  17. 38 + 20 = ______
  18. 46 + 20 = ______
  19. 59 + 20 = ______
  20. 69 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath