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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. 30 + 10 = ______
  2. 74 + 20 = ______
  3. 56 − 10 = ______
  4. 65 − 10 = ______
  5. 49 + 20 = ______
  6. 59 + 20 = ______
  7. 7 × 10 = ______
  8. 59 + 10 = ______
  9. 60 + 20 = ______
  10. 45 − 10 = ______
  11. 85 + 20 = ______
  12. 54 − 10 = ______
  13. 2 × 10 = ______
  14. 82 + 20 = ______
  15. 6 × 10 = ______
  16. 5 × 10 = ______
  17. 82 + 10 = ______
  18. 28 + 20 = ______
  19. 73 + 10 = ______
  20. 25 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath