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. 42 + 20 = ______
  2. 62 − 10 = ______
  3. 78 + 20 = ______
  4. 59 + 20 = ______
  5. 1 × 10 = ______
  6. 71 + 10 = ______
  7. 36 + 10 = ______
  8. 3 × 10 = ______
  9. 39 + 20 = ______
  10. 32 + 10 = ______
  11. 5 × 10 = ______
  12. 25 − 10 = ______
  13. 60 + 10 = ______
  14. 58 − 10 = ______
  15. 71 + 20 = ______
  16. 43 + 20 = ______
  17. 52 + 20 = ______
  18. 17 + 10 = ______
  19. 6 × 10 = ______
  20. 64 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath