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. 63 + 10 = ______
  2. 9 × 10 = ______
  3. 44 + 20 = ______
  4. 41 + 10 = ______
  5. 38 + 20 = ______
  6. 82 − 10 = ______
  7. 5 × 10 = ______
  8. 31 + 20 = ______
  9. 84 + 20 = ______
  10. 50 + 20 = ______
  11. 32 + 20 = ______
  12. 21 − 10 = ______
  13. 3 × 10 = ______
  14. 88 + 10 = ______
  15. 14 + 10 = ______
  16. 21 + 20 = ______
  17. 80 + 20 = ______
  18. 51 − 10 = ______
  19. 78 − 10 = ______
  20. 87 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath