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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. 41 + 10 = ______
  2. 63 + 10 = ______
  3. 90 − 10 = ______
  4. 43 + 20 = ______
  5. 82 + 10 = ______
  6. 71 + 10 = ______
  7. 21 − 10 = ______
  8. 73 − 10 = ______
  9. 17 + 20 = ______
  10. 54 − 10 = ______
  11. 38 − 10 = ______
  12. 14 + 20 = ______
  13. 58 + 20 = ______
  14. 92 − 10 = ______
  15. 4 × 10 = ______
  16. 86 + 20 = ______
  17. 43 + 10 = ______
  18. 60 + 20 = ______
  19. 66 + 10 = ______
  20. 51 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath