WaffleMath LogoWaffleMath
K12345678HSBrowse standardsBrowse worksheetsTeacher resources

Mental Math Worksheet

Recommended for 1st Grade — 5th Grade

More Mental Math GamesAll Worksheets
New Worksheet

Mental Math Worksheet

Name: ____________________Date: ____________

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

20 problems

  1. 5 × 10 = ______
  2. 82 + 10 = ______
  3. 4 × 10 = ______
  4. 41 + 20 = ______
  5. 85 − 10 = ______
  6. 67 + 10 = ______
  7. 65 + 20 = ______
  8. 38 + 20 = ______
  9. 63 + 10 = ______
  10. 89 + 20 = ______
  11. 22 + 20 = ______
  12. 88 − 10 = ______
  13. 3 × 10 = ______
  14. 82 − 10 = ______
  15. 7 × 10 = ______
  16. 67 + 20 = ______
  17. 29 − 10 = ______
  18. 53 + 20 = ______
  19. 27 − 10 = ______
  20. 29 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath