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. 86 − 10 = ______
  2. 5 × 10 = ______
  3. 42 + 20 = ______
  4. 45 + 20 = ______
  5. 86 + 20 = ______
  6. 71 + 10 = ______
  7. 35 + 10 = ______
  8. 81 + 20 = ______
  9. 70 + 10 = ______
  10. 49 + 10 = ______
  11. 92 − 10 = ______
  12. 2 × 10 = ______
  13. 3 × 10 = ______
  14. 14 + 10 = ______
  15. 88 + 10 = ______
  16. 37 − 10 = ______
  17. 78 + 10 = ______
  18. 42 + 10 = ______
  19. 26 + 10 = ______
  20. 22 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath