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. 30 − 10 = ______
  2. 17 + 20 = ______
  3. 81 + 20 = ______
  4. 2 × 10 = ______
  5. 55 + 20 = ______
  6. 47 + 10 = ______
  7. 61 + 10 = ______
  8. 5 × 10 = ______
  9. 63 + 20 = ______
  10. 26 + 20 = ______
  11. 71 + 10 = ______
  12. 33 + 20 = ______
  13. 44 − 10 = ______
  14. 6 × 10 = ______
  15. 88 + 10 = ______
  16. 99 − 10 = ______
  17. 49 + 20 = ______
  18. 81 − 10 = ______
  19. 67 + 20 = ______
  20. 36 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath