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. 38 + 10 = ______
  2. 40 + 20 = ______
  3. 28 + 10 = ______
  4. 21 + 20 = ______
  5. 32 + 10 = ______
  6. 1 × 10 = ______
  7. 5 × 10 = ______
  8. 9 × 10 = ______
  9. 66 − 10 = ______
  10. 74 + 10 = ______
  11. 34 − 10 = ______
  12. 75 + 10 = ______
  13. 80 + 20 = ______
  14. 54 + 10 = ______
  15. 70 + 20 = ______
  16. 77 + 10 = ______
  17. 52 + 10 = ______
  18. 39 + 10 = ______
  19. 63 + 20 = ______
  20. 31 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath