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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. 32 + 20 = ______
  2. 39 + 20 = ______
  3. 79 − 10 = ______
  4. 86 − 10 = ______
  5. 58 − 10 = ______
  6. 69 + 10 = ______
  7. 81 + 20 = ______
  8. 63 + 20 = ______
  9. 47 + 20 = ______
  10. 84 − 10 = ______
  11. 57 − 10 = ______
  12. 24 + 20 = ______
  13. 23 + 20 = ______
  14. 8 × 10 = ______
  15. 9 × 10 = ______
  16. 54 + 10 = ______
  17. 6 × 10 = ______
  18. 51 + 10 = ______
  19. 2 × 10 = ______
  20. 54 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath