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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. 15 + 20 = ______
  2. 65 + 10 = ______
  3. 66 + 10 = ______
  4. 1 × 10 = ______
  5. 88 − 10 = ______
  6. 25 − 10 = ______
  7. 32 − 10 = ______
  8. 37 + 20 = ______
  9. 50 + 20 = ______
  10. 85 + 10 = ______
  11. 43 + 20 = ______
  12. 3 × 10 = ______
  13. 7 × 10 = ______
  14. 12 + 10 = ______
  15. 5 × 10 = ______
  16. 57 + 10 = ______
  17. 73 − 10 = ______
  18. 75 − 10 = ______
  19. 17 + 20 = ______
  20. 91 − 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath