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. 50 − 10 = ______
  2. 31 − 10 = ______
  3. 1 × 10 = ______
  4. 64 + 10 = ______
  5. 88 + 20 = ______
  6. 16 + 10 = ______
  7. 84 − 10 = ______
  8. 66 + 20 = ______
  9. 9 × 10 = ______
  10. 61 + 10 = ______
  11. 23 + 10 = ______
  12. 60 − 10 = ______
  13. 42 + 20 = ______
  14. 63 + 20 = ______
  15. 67 + 20 = ______
  16. 71 + 10 = ______
  17. 70 + 10 = ______
  18. 18 + 20 = ______
  19. 58 + 10 = ______
  20. 38 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath