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. 64 + 20 = ______
  2. 26 + 10 = ______
  3. 46 + 10 = ______
  4. 30 + 10 = ______
  5. 30 − 10 = ______
  6. 53 + 10 = ______
  7. 62 + 10 = ______
  8. 81 + 20 = ______
  9. 97 − 10 = ______
  10. 60 − 10 = ______
  11. 3 × 10 = ______
  12. 23 + 20 = ______
  13. 38 + 20 = ______
  14. 45 + 10 = ______
  15. 4 × 10 = ______
  16. 21 − 10 = ______
  17. 2 × 10 = ______
  18. 45 + 20 = ______
  19. 85 + 20 = ______
  20. 7 × 10 = ______
Mental Math Worksheet — Free Printable with Answer Key | WaffleMath