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. 1 × 10 = ______
  2. 5 × 10 = ______
  3. 21 + 10 = ______
  4. 6 × 10 = ______
  5. 9 × 10 = ______
  6. 80 + 20 = ______
  7. 81 + 20 = ______
  8. 59 + 20 = ______
  9. 68 + 10 = ______
  10. 60 + 10 = ______
  11. 94 − 10 = ______
  12. 33 + 20 = ______
  13. 34 − 10 = ______
  14. 68 + 20 = ______
  15. 81 + 10 = ______
  16. 17 + 10 = ______
  17. 33 − 10 = ______
  18. 27 + 20 = ______
  19. 82 + 20 = ______
  20. 70 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath