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. 51 + 20 = ______
  2. 46 + 10 = ______
  3. 65 − 10 = ______
  4. 71 + 20 = ______
  5. 6 × 10 = ______
  6. 60 − 10 = ______
  7. 78 + 20 = ______
  8. 5 × 10 = ______
  9. 38 + 10 = ______
  10. 48 + 10 = ______
  11. 38 − 10 = ______
  12. 19 + 10 = ______
  13. 3 × 10 = ______
  14. 31 + 10 = ______
  15. 1 × 10 = ______
  16. 40 + 10 = ______
  17. 60 + 20 = ______
  18. 83 − 10 = ______
  19. 43 − 10 = ______
  20. 84 + 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath