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. 86 + 20 = ______
  2. 71 + 10 = ______
  3. 61 + 20 = ______
  4. 24 − 10 = ______
  5. 9 × 10 = ______
  6. 83 + 20 = ______
  7. 1 × 10 = ______
  8. 39 + 20 = ______
  9. 39 − 10 = ______
  10. 21 + 10 = ______
  11. 40 + 20 = ______
  12. 60 + 20 = ______
  13. 62 + 20 = ______
  14. 87 + 20 = ______
  15. 14 + 20 = ______
  16. 46 + 10 = ______
  17. 29 + 10 = ______
  18. 70 + 20 = ______
  19. 81 − 10 = ______
  20. 5 × 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath