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. 84 + 20 = ______
  2. 80 + 20 = ______
  3. 17 + 10 = ______
  4. 38 − 10 = ______
  5. 63 + 10 = ______
  6. 66 − 10 = ______
  7. 67 + 10 = ______
  8. 64 + 10 = ______
  9. 2 × 10 = ______
  10. 33 + 20 = ______
  11. 33 + 10 = ______
  12. 50 + 10 = ______
  13. 3 × 10 = ______
  14. 28 − 10 = ______
  15. 62 − 10 = ______
  16. 80 + 10 = ______
  17. 53 − 10 = ______
  18. 7 × 10 = ______
  19. 50 + 20 = ______
  20. 23 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath