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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. 39 − 10 = ______
  2. 38 − 10 = ______
  3. 3 × 10 = ______
  4. 25 + 20 = ______
  5. 57 + 10 = ______
  6. 78 + 10 = ______
  7. 97 − 10 = ______
  8. 76 + 20 = ______
  9. 25 − 10 = ______
  10. 78 + 20 = ______
  11. 8 × 10 = ______
  12. 46 + 20 = ______
  13. 59 − 10 = ______
  14. 90 − 10 = ______
  15. 83 + 20 = ______
  16. 39 + 20 = ______
  17. 53 + 20 = ______
  18. 76 + 10 = ______
  19. 35 + 20 = ______
  20. 2 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath