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. 63 + 20 = ______
  2. 14 + 10 = ______
  3. 24 − 10 = ______
  4. 74 − 10 = ______
  5. 47 − 10 = ______
  6. 62 + 10 = ______
  7. 49 + 20 = ______
  8. 89 − 10 = ______
  9. 61 + 10 = ______
  10. 77 + 20 = ______
  11. 47 + 10 = ______
  12. 8 × 10 = ______
  13. 43 + 10 = ______
  14. 18 + 10 = ______
  15. 42 + 20 = ______
  16. 32 + 10 = ______
  17. 41 + 20 = ______
  18. 38 + 20 = ______
  19. 64 + 10 = ______
  20. 58 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath