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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. 17 + 10 = ______
  2. 83 + 10 = ______
  3. 48 + 20 = ______
  4. 64 + 20 = ______
  5. 2 × 10 = ______
  6. 9 × 10 = ______
  7. 86 − 10 = ______
  8. 23 + 20 = ______
  9. 85 + 20 = ______
  10. 76 − 10 = ______
  11. 56 + 10 = ______
  12. 78 + 20 = ______
  13. 7 × 10 = ______
  14. 38 − 10 = ______
  15. 48 − 10 = ______
  16. 6 × 10 = ______
  17. 49 + 10 = ______
  18. 1 × 10 = ______
  19. 12 + 20 = ______
  20. 13 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath