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. 24 + 20 = ______
  2. 24 − 10 = ______
  3. 61 + 10 = ______
  4. 65 − 10 = ______
  5. 59 − 10 = ______
  6. 83 + 20 = ______
  7. 29 − 10 = ______
  8. 56 + 10 = ______
  9. 16 + 20 = ______
  10. 22 + 20 = ______
  11. 18 + 10 = ______
  12. 27 + 20 = ______
  13. 82 − 10 = ______
  14. 6 × 10 = ______
  15. 69 + 20 = ______
  16. 43 − 10 = ______
  17. 60 + 20 = ______
  18. 3 × 10 = ______
  19. 23 + 20 = ______
  20. 35 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath