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. 55 + 20 = ______
  3. 94 − 10 = ______
  4. 41 + 10 = ______
  5. 42 − 10 = ______
  6. 37 + 10 = ______
  7. 49 − 10 = ______
  8. 36 + 10 = ______
  9. 43 + 20 = ______
  10. 18 + 20 = ______
  11. 3 × 10 = ______
  12. 65 + 10 = ______
  13. 23 + 10 = ______
  14. 91 − 10 = ______
  15. 59 + 20 = ______
  16. 62 − 10 = ______
  17. 95 − 10 = ______
  18. 42 + 20 = ______
  19. 71 + 10 = ______
  20. 65 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath