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. 55 + 20 = ______
  2. 95 − 10 = ______
  3. 79 + 10 = ______
  4. 38 + 10 = ______
  5. 27 + 20 = ______
  6. 81 − 10 = ______
  7. 13 + 10 = ______
  8. 47 + 10 = ______
  9. 90 − 10 = ______
  10. 44 − 10 = ______
  11. 5 × 10 = ______
  12. 75 − 10 = ______
  13. 6 × 10 = ______
  14. 78 + 10 = ______
  15. 2 × 10 = ______
  16. 71 + 10 = ______
  17. 37 + 20 = ______
  18. 46 + 20 = ______
  19. 86 + 20 = ______
  20. 49 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath