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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. 25 + 20 = ______
  2. 3 × 10 = ______
  3. 4 × 10 = ______
  4. 66 − 10 = ______
  5. 90 − 10 = ______
  6. 5 × 10 = ______
  7. 41 + 10 = ______
  8. 38 − 10 = ______
  9. 31 + 20 = ______
  10. 50 + 10 = ______
  11. 85 + 20 = ______
  12. 23 + 20 = ______
  13. 39 − 10 = ______
  14. 9 × 10 = ______
  15. 33 − 10 = ______
  16. 27 + 20 = ______
  17. 82 + 10 = ______
  18. 40 − 10 = ______
  19. 34 + 20 = ______
  20. 46 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath