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. 17 + 10 = ______
  2. 3 × 10 = ______
  3. 66 + 10 = ______
  4. 87 + 10 = ______
  5. 47 + 20 = ______
  6. 79 + 20 = ______
  7. 22 + 10 = ______
  8. 68 + 20 = ______
  9. 65 + 20 = ______
  10. 63 + 20 = ______
  11. 89 + 20 = ______
  12. 73 − 10 = ______
  13. 43 + 10 = ______
  14. 16 + 10 = ______
  15. 14 + 10 = ______
  16. 54 + 10 = ______
  17. 7 × 10 = ______
  18. 8 × 10 = ______
  19. 65 + 10 = ______
  20. 37 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath