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. 85 + 10 = ______
  2. 72 − 10 = ______
  3. 47 − 10 = ______
  4. 65 + 20 = ______
  5. 1 × 10 = ______
  6. 38 + 20 = ______
  7. 2 × 10 = ______
  8. 85 + 20 = ______
  9. 86 + 10 = ______
  10. 35 + 20 = ______
  11. 53 + 20 = ______
  12. 55 − 10 = ______
  13. 58 − 10 = ______
  14. 77 + 10 = ______
  15. 61 − 10 = ______
  16. 60 + 10 = ______
  17. 78 − 10 = ______
  18. 55 + 20 = ______
  19. 71 + 20 = ______
  20. 64 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath