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. 31 − 10 = ______
  2. 53 − 10 = ______
  3. 24 + 20 = ______
  4. 82 + 20 = ______
  5. 51 + 10 = ______
  6. 80 − 10 = ______
  7. 40 + 10 = ______
  8. 81 + 20 = ______
  9. 19 + 10 = ______
  10. 12 + 20 = ______
  11. 92 − 10 = ______
  12. 27 + 10 = ______
  13. 14 + 10 = ______
  14. 88 + 20 = ______
  15. 71 + 20 = ______
  16. 55 + 20 = ______
  17. 21 + 10 = ______
  18. 32 + 20 = ______
  19. 76 + 20 = ______
  20. 47 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath