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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. 55 + 20 = ______
  2. 54 + 10 = ______
  3. 9 × 10 = ______
  4. 64 + 10 = ______
  5. 21 − 10 = ______
  6. 19 + 10 = ______
  7. 34 + 10 = ______
  8. 26 + 20 = ______
  9. 71 + 20 = ______
  10. 89 + 20 = ______
  11. 46 + 20 = ______
  12. 72 + 10 = ______
  13. 38 + 10 = ______
  14. 50 + 20 = ______
  15. 30 + 20 = ______
  16. 7 × 10 = ______
  17. 60 − 10 = ______
  18. 75 + 10 = ______
  19. 3 × 10 = ______
  20. 82 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath