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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. 23 + 10 = ______
  2. 42 − 10 = ______
  3. 68 + 20 = ______
  4. 88 − 10 = ______
  5. 40 − 10 = ______
  6. 78 + 20 = ______
  7. 34 + 20 = ______
  8. 74 + 20 = ______
  9. 88 + 20 = ______
  10. 13 + 10 = ______
  11. 82 + 20 = ______
  12. 50 + 20 = ______
  13. 74 − 10 = ______
  14. 7 × 10 = ______
  15. 20 + 10 = ______
  16. 43 + 10 = ______
  17. 84 + 20 = ______
  18. 33 + 20 = ______
  19. 22 + 20 = ______
  20. 26 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath