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. 2 × 10 = ______
  2. 21 + 20 = ______
  3. 64 − 10 = ______
  4. 52 − 10 = ______
  5. 43 + 10 = ______
  6. 38 + 20 = ______
  7. 46 + 20 = ______
  8. 35 − 10 = ______
  9. 28 + 10 = ______
  10. 36 + 10 = ______
  11. 29 − 10 = ______
  12. 55 + 10 = ______
  13. 8 × 10 = ______
  14. 23 + 10 = ______
  15. 90 − 10 = ______
  16. 53 − 10 = ______
  17. 33 − 10 = ______
  18. 59 + 10 = ______
  19. 63 + 20 = ______
  20. 85 + 20 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath