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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. 31 + 10 = ______
  2. 7 × 10 = ______
  3. 79 + 10 = ______
  4. 17 + 20 = ______
  5. 75 + 20 = ______
  6. 38 + 10 = ______
  7. 23 − 10 = ______
  8. 96 − 10 = ______
  9. 73 + 20 = ______
  10. 5 × 10 = ______
  11. 63 + 20 = ______
  12. 81 + 20 = ______
  13. 53 + 10 = ______
  14. 67 + 10 = ______
  15. 55 + 10 = ______
  16. 31 + 20 = ______
  17. 78 + 20 = ______
  18. 58 + 20 = ______
  19. 56 − 10 = ______
  20. 3 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath