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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. 80 − 10 = ______
  2. 5 × 10 = ______
  3. 1 × 10 = ______
  4. 3 × 10 = ______
  5. 38 − 10 = ______
  6. 4 × 10 = ______
  7. 50 + 20 = ______
  8. 85 − 10 = ______
  9. 87 + 20 = ______
  10. 31 + 20 = ______
  11. 43 − 10 = ______
  12. 32 − 10 = ______
  13. 16 + 20 = ______
  14. 65 + 20 = ______
  15. 70 + 10 = ______
  16. 35 − 10 = ______
  17. 89 − 10 = ______
  18. 63 + 10 = ______
  19. 66 + 20 = ______
  20. 34 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath