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. 64 + 20 = ______
  2. 6 × 10 = ______
  3. 67 + 20 = ______
  4. 53 + 20 = ______
  5. 61 + 10 = ______
  6. 42 − 10 = ______
  7. 79 − 10 = ______
  8. 83 + 10 = ______
  9. 82 + 20 = ______
  10. 39 + 10 = ______
  11. 18 + 20 = ______
  12. 7 × 10 = ______
  13. 84 + 10 = ______
  14. 44 + 10 = ______
  15. 83 − 10 = ______
  16. 49 − 10 = ______
  17. 8 × 10 = ______
  18. 70 − 10 = ______
  19. 44 + 20 = ______
  20. 20 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath