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. 11 + 10 = ______
  2. 39 + 10 = ______
  3. 66 + 10 = ______
  4. 9 × 10 = ______
  5. 86 + 10 = ______
  6. 58 + 20 = ______
  7. 77 − 10 = ______
  8. 68 + 20 = ______
  9. 53 + 20 = ______
  10. 36 + 20 = ______
  11. 61 − 10 = ______
  12. 28 − 10 = ______
  13. 41 + 10 = ______
  14. 4 × 10 = ______
  15. 74 + 10 = ______
  16. 83 − 10 = ______
  17. 14 + 20 = ______
  18. 53 − 10 = ______
  19. 34 + 10 = ______
  20. 43 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath