Mental Math Worksheet

Recommended for 1st Grade — 5th Grade

New Worksheet

Mental Math Worksheet

Name: ____________________Date: ____________

Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.

20 problems

  1. 69 + 10 = ______
  2. 40 − 10 = ______
  3. 57 − 10 = ______
  4. 6 × 10 = ______
  5. 74 + 10 = ______
  6. 48 − 10 = ______
  7. 3 × 10 = ______
  8. 2 × 10 = ______
  9. 72 + 10 = ______
  10. 89 + 20 = ______
  11. 50 − 10 = ______
  12. 67 − 10 = ______
  13. 37 + 20 = ______
  14. 4 × 10 = ______
  15. 85 + 10 = ______
  16. 8 × 10 = ______
  17. 42 − 10 = ______
  18. 26 + 10 = ______
  19. 45 + 10 = ______
  20. 54 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath