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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. 86 − 10 = ______
  2. 47 − 10 = ______
  3. 59 − 10 = ______
  4. 36 + 20 = ______
  5. 61 + 20 = ______
  6. 4 × 10 = ______
  7. 71 + 20 = ______
  8. 81 + 20 = ______
  9. 51 + 10 = ______
  10. 34 + 10 = ______
  11. 32 − 10 = ______
  12. 29 + 20 = ______
  13. 16 + 20 = ______
  14. 82 − 10 = ______
  15. 8 × 10 = ______
  16. 23 + 20 = ______
  17. 56 + 10 = ______
  18. 6 × 10 = ______
  19. 2 × 10 = ______
  20. 83 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath