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. 21 + 10 = ______
  2. 90 − 10 = ______
  3. 6 × 10 = ______
  4. 48 + 10 = ______
  5. 5 × 10 = ______
  6. 40 + 20 = ______
  7. 84 + 20 = ______
  8. 59 + 10 = ______
  9. 58 + 10 = ______
  10. 82 + 10 = ______
  11. 34 − 10 = ______
  12. 9 × 10 = ______
  13. 61 + 10 = ______
  14. 17 + 20 = ______
  15. 54 + 20 = ______
  16. 34 + 10 = ______
  17. 31 − 10 = ______
  18. 1 × 10 = ______
  19. 29 + 10 = ______
  20. 47 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath