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. 75 − 10 = ______
  2. 90 − 10 = ______
  3. 73 + 20 = ______
  4. 67 + 10 = ______
  5. 76 + 10 = ______
  6. 62 − 10 = ______
  7. 49 + 20 = ______
  8. 8 × 10 = ______
  9. 44 + 20 = ______
  10. 34 + 20 = ______
  11. 64 + 10 = ______
  12. 27 − 10 = ______
  13. 77 − 10 = ______
  14. 68 + 20 = ______
  15. 13 + 10 = ______
  16. 4 × 10 = ______
  17. 66 + 20 = ______
  18. 15 + 10 = ______
  19. 35 + 20 = ______
  20. 75 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath