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. 48 + 20 = ______
  2. 32 + 20 = ______
  3. 71 + 10 = ______
  4. 26 + 10 = ______
  5. 66 + 20 = ______
  6. 38 + 20 = ______
  7. 89 + 10 = ______
  8. 79 − 10 = ______
  9. 55 − 10 = ______
  10. 73 + 20 = ______
  11. 51 + 10 = ______
  12. 4 × 10 = ______
  13. 61 + 20 = ______
  14. 6 × 10 = ______
  15. 34 + 10 = ______
  16. 44 + 10 = ______
  17. 50 − 10 = ______
  18. 36 − 10 = ______
  19. 25 + 10 = ______
  20. 40 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath