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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. 70 + 20 = ______
  2. 9 × 10 = ______
  3. 55 + 10 = ______
  4. 75 + 20 = ______
  5. 25 + 20 = ______
  6. 87 + 20 = ______
  7. 42 + 10 = ______
  8. 49 + 20 = ______
  9. 7 × 10 = ______
  10. 50 + 20 = ______
  11. 23 + 10 = ______
  12. 14 + 10 = ______
  13. 59 − 10 = ______
  14. 76 − 10 = ______
  15. 30 − 10 = ______
  16. 62 + 10 = ______
  17. 69 + 10 = ______
  18. 80 + 20 = ______
  19. 35 + 20 = ______
  20. 28 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath