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. 51 + 20 = ______
  2. 56 − 10 = ______
  3. 79 + 10 = ______
  4. 24 − 10 = ______
  5. 80 − 10 = ______
  6. 68 + 10 = ______
  7. 49 + 20 = ______
  8. 18 + 10 = ______
  9. 39 + 10 = ______
  10. 3 × 10 = ______
  11. 45 + 10 = ______
  12. 33 + 20 = ______
  13. 76 + 20 = ______
  14. 53 + 20 = ______
  15. 1 × 10 = ______
  16. 44 + 20 = ______
  17. 76 + 10 = ______
  18. 54 + 20 = ______
  19. 30 + 10 = ______
  20. 62 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath