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. 29 + 10 = ______
  2. 59 + 20 = ______
  3. 38 − 10 = ______
  4. 2 × 10 = ______
  5. 39 + 20 = ______
  6. 82 − 10 = ______
  7. 48 + 10 = ______
  8. 41 − 10 = ______
  9. 11 + 10 = ______
  10. 81 + 10 = ______
  11. 26 + 20 = ______
  12. 55 + 10 = ______
  13. 28 + 20 = ______
  14. 37 + 20 = ______
  15. 78 + 10 = ______
  16. 61 − 10 = ______
  17. 21 − 10 = ______
  18. 83 + 10 = ______
  19. 31 + 20 = ______
  20. 66 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath