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. 13 + 20 = ______
  2. 46 + 20 = ______
  3. 3 × 10 = ______
  4. 2 × 10 = ______
  5. 70 + 10 = ______
  6. 25 − 10 = ______
  7. 8 × 10 = ______
  8. 58 − 10 = ______
  9. 39 − 10 = ______
  10. 22 − 10 = ______
  11. 26 − 10 = ______
  12. 65 + 20 = ______
  13. 43 + 20 = ______
  14. 37 − 10 = ______
  15. 31 + 20 = ______
  16. 91 − 10 = ______
  17. 52 − 10 = ______
  18. 53 − 10 = ______
  19. 30 + 20 = ______
  20. 45 − 10 = ______