Matemáticas mentales Worksheet

Recommended for 1er grado — 5to grado

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Matemáticas mentales Worksheet

Name: ____________________Date: ____________

Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.

20 problems

  1. 82 − 10 = ______
  2. 6 × 10 = ______
  3. 69 + 10 = ______
  4. 38 − 10 = ______
  5. 33 + 10 = ______
  6. 67 + 20 = ______
  7. 31 − 10 = ______
  8. 52 + 20 = ______
  9. 47 + 10 = ______
  10. 57 + 20 = ______
  11. 43 + 20 = ______
  12. 37 + 20 = ______
  13. 48 − 10 = ______
  14. 65 + 20 = ______
  15. 80 + 10 = ______
  16. 2 × 10 = ______
  17. 77 − 10 = ______
  18. 79 + 10 = ______
  19. 77 + 20 = ______
  20. 20 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath