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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. 64 + 10 = ______
  2. 52 + 20 = ______
  3. 69 + 10 = ______
  4. 68 + 20 = ______
  5. 86 − 10 = ______
  6. 25 − 10 = ______
  7. 2 × 10 = ______
  8. 66 − 10 = ______
  9. 3 × 10 = ______
  10. 25 + 20 = ______
  11. 8 × 10 = ______
  12. 81 + 10 = ______
  13. 54 + 20 = ______
  14. 50 + 20 = ______
  15. 45 + 10 = ______
  16. 4 × 10 = ______
  17. 35 + 10 = ______
  18. 71 + 20 = ______
  19. 37 + 20 = ______
  20. 35 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath