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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. 77 + 20 = ______
  2. 76 + 20 = ______
  3. 81 − 10 = ______
  4. 46 + 20 = ______
  5. 96 − 10 = ______
  6. 76 − 10 = ______
  7. 27 + 10 = ______
  8. 27 − 10 = ______
  9. 69 − 10 = ______
  10. 93 − 10 = ______
  11. 71 + 20 = ______
  12. 23 + 20 = ______
  13. 26 + 10 = ______
  14. 50 − 10 = ______
  15. 36 + 20 = ______
  16. 88 − 10 = ______
  17. 7 × 10 = ______
  18. 6 × 10 = ______
  19. 73 − 10 = ______
  20. 72 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath