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. 42 + 10 = ______
  2. 30 + 20 = ______
  3. 1 × 10 = ______
  4. 64 + 20 = ______
  5. 59 + 10 = ______
  6. 61 + 10 = ______
  7. 71 + 10 = ______
  8. 63 + 20 = ______
  9. 77 − 10 = ______
  10. 30 − 10 = ______
  11. 23 − 10 = ______
  12. 8 × 10 = ______
  13. 56 − 10 = ______
  14. 7 × 10 = ______
  15. 56 + 20 = ______
  16. 27 − 10 = ______
  17. 67 + 20 = ______
  18. 13 + 10 = ______
  19. 86 + 10 = ______
  20. 74 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath