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. 61 + 20 = ______
  2. 69 + 20 = ______
  3. 53 + 20 = ______
  4. 52 − 10 = ______
  5. 89 + 20 = ______
  6. 4 × 10 = ______
  7. 7 × 10 = ______
  8. 54 − 10 = ______
  9. 20 + 20 = ______
  10. 75 + 20 = ______
  11. 58 + 10 = ______
  12. 34 + 10 = ______
  13. 68 + 10 = ______
  14. 74 + 10 = ______
  15. 86 + 20 = ______
  16. 81 + 10 = ______
  17. 94 − 10 = ______
  18. 78 + 10 = ______
  19. 3 × 10 = ______
  20. 23 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath