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. 13 + 10 = ______
  2. 20 + 10 = ______
  3. 3 × 10 = ______
  4. 27 + 20 = ______
  5. 51 + 10 = ______
  6. 65 − 10 = ______
  7. 15 + 20 = ______
  8. 57 − 10 = ______
  9. 78 + 20 = ______
  10. 81 + 10 = ______
  11. 78 − 10 = ______
  12. 52 + 20 = ______
  13. 81 − 10 = ______
  14. 55 + 20 = ______
  15. 45 + 10 = ______
  16. 72 + 10 = ______
  17. 54 + 10 = ______
  18. 39 − 10 = ______
  19. 47 + 10 = ______
  20. 62 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath