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. 29 + 20 = ______
  2. 35 + 10 = ______
  3. 42 + 20 = ______
  4. 75 + 20 = ______
  5. 31 + 20 = ______
  6. 4 × 10 = ______
  7. 50 + 10 = ______
  8. 79 + 10 = ______
  9. 1 × 10 = ______
  10. 55 − 10 = ______
  11. 41 + 20 = ______
  12. 61 − 10 = ______
  13. 74 + 20 = ______
  14. 21 + 20 = ______
  15. 5 × 10 = ______
  16. 59 − 10 = ______
  17. 91 − 10 = ______
  18. 54 + 20 = ______
  19. 63 + 20 = ______
  20. 40 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath