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. 89 + 10 = ______
  2. 97 − 10 = ______
  3. 80 + 10 = ______
  4. 76 + 10 = ______
  5. 36 + 10 = ______
  6. 7 × 10 = ______
  7. 5 × 10 = ______
  8. 83 + 10 = ______
  9. 31 − 10 = ______
  10. 46 + 20 = ______
  11. 44 + 20 = ______
  12. 56 + 20 = ______
  13. 52 − 10 = ______
  14. 70 + 10 = ______
  15. 1 × 10 = ______
  16. 14 + 20 = ______
  17. 85 + 20 = ______
  18. 52 + 20 = ______
  19. 69 − 10 = ______
  20. 60 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath