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. 27 + 20 = ______
  2. 72 + 20 = ______
  3. 8 × 10 = ______
  4. 17 + 20 = ______
  5. 38 + 20 = ______
  6. 46 + 20 = ______
  7. 44 + 10 = ______
  8. 6 × 10 = ______
  9. 55 − 10 = ______
  10. 69 + 10 = ______
  11. 34 + 10 = ______
  12. 53 + 20 = ______
  13. 3 × 10 = ______
  14. 42 + 20 = ______
  15. 11 + 20 = ______
  16. 39 − 10 = ______
  17. 54 − 10 = ______
  18. 16 + 20 = ______
  19. 78 + 10 = ______
  20. 77 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath