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. 18 + 20 = ______
  2. 56 + 10 = ______
  3. 38 + 10 = ______
  4. 43 + 10 = ______
  5. 47 + 20 = ______
  6. 71 + 10 = ______
  7. 1 × 10 = ______
  8. 60 + 20 = ______
  9. 26 − 10 = ______
  10. 36 + 10 = ______
  11. 24 + 10 = ______
  12. 23 − 10 = ______
  13. 65 − 10 = ______
  14. 87 + 20 = ______
  15. 20 + 20 = ______
  16. 80 + 10 = ______
  17. 25 + 10 = ______
  18. 51 + 20 = ______
  19. 7 × 10 = ______
  20. 56 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath