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. 6 × 10 = ______
  2. 71 + 10 = ______
  3. 9 × 10 = ______
  4. 49 + 10 = ______
  5. 66 − 10 = ______
  6. 39 + 20 = ______
  7. 7 × 10 = ______
  8. 43 + 10 = ______
  9. 4 × 10 = ______
  10. 73 + 20 = ______
  11. 28 + 20 = ______
  12. 24 + 20 = ______
  13. 12 + 10 = ______
  14. 41 + 10 = ______
  15. 56 − 10 = ______
  16. 57 + 20 = ______
  17. 86 + 20 = ______
  18. 34 + 10 = ______
  19. 22 − 10 = ______
  20. 41 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath