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 + 20 = ______
  2. 23 + 10 = ______
  3. 44 − 10 = ______
  4. 50 + 10 = ______
  5. 4 × 10 = ______
  6. 58 + 20 = ______
  7. 85 − 10 = ______
  8. 29 + 20 = ______
  9. 70 + 20 = ______
  10. 82 − 10 = ______
  11. 38 + 20 = ______
  12. 20 + 10 = ______
  13. 33 + 20 = ______
  14. 84 + 10 = ______
  15. 6 × 10 = ______
  16. 2 × 10 = ______
  17. 21 − 10 = ______
  18. 17 + 10 = ______
  19. 79 − 10 = ______
  20. 11 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath