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. 66 + 20 = ______
  2. 74 − 10 = ______
  3. 45 − 10 = ______
  4. 67 + 10 = ______
  5. 77 + 20 = ______
  6. 48 + 10 = ______
  7. 4 × 10 = ______
  8. 38 + 20 = ______
  9. 32 + 20 = ______
  10. 89 + 20 = ______
  11. 81 + 20 = ______
  12. 32 − 10 = ______
  13. 37 + 10 = ______
  14. 40 + 10 = ______
  15. 41 − 10 = ______
  16. 99 − 10 = ______
  17. 64 + 20 = ______
  18. 16 + 20 = ______
  19. 71 + 10 = ______
  20. 68 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath