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. 69 + 20 = ______
  2. 48 + 20 = ______
  3. 61 + 10 = ______
  4. 84 − 10 = ______
  5. 85 + 20 = ______
  6. 51 + 10 = ______
  7. 83 + 20 = ______
  8. 2 × 10 = ______
  9. 3 × 10 = ______
  10. 1 × 10 = ______
  11. 88 − 10 = ______
  12. 27 + 20 = ______
  13. 7 × 10 = ______
  14. 32 + 20 = ______
  15. 27 + 10 = ______
  16. 21 − 10 = ______
  17. 88 + 20 = ______
  18. 56 − 10 = ______
  19. 49 + 10 = ______
  20. 89 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath