WaffleMath LogoWaffleMath
K12345678HSBrowse standardsBrowse worksheetsTeacher resources

Matematica mentale Worksheet

Recommended for 1° grado — 5° grado

Altri giochi Matematica mentaleAll Worksheets
New Worksheet

Matematica mentale Worksheet

Nome: ____________________Date: ____________

Instructions: Usare strategie mentali come fare dieci, raddoppiare e compensare per calcolare rapidamente.

20 problems

  1. 38 + 10 = ______
  2. 23 + 20 = ______
  3. 9 × 10 = ______
  4. 31 + 20 = ______
  5. 28 + 10 = ______
  6. 72 + 10 = ______
  7. 12 + 10 = ______
  8. 25 + 20 = ______
  9. 4 × 10 = ______
  10. 87 + 10 = ______
  11. 90 − 10 = ______
  12. 3 × 10 = ______
  13. 79 + 20 = ______
  14. 22 + 10 = ______
  15. 43 + 10 = ______
  16. 97 − 10 = ______
  17. 87 + 20 = ______
  18. 60 − 10 = ______
  19. 75 + 10 = ______
  20. 65 + 20 = ______