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. 74 + 20 = ______
  2. 42 + 20 = ______
  3. 6 × 10 = ______
  4. 80 − 10 = ______
  5. 16 + 20 = ______
  6. 16 + 10 = ______
  7. 87 + 10 = ______
  8. 49 + 10 = ______
  9. 18 + 10 = ______
  10. 9 × 10 = ______
  11. 40 + 20 = ______
  12. 2 × 10 = ______
  13. 82 + 10 = ______
  14. 78 + 20 = ______
  15. 1 × 10 = ______
  16. 35 + 10 = ______
  17. 51 − 10 = ______
  18. 12 + 20 = ______
  19. 68 − 10 = ______
  20. 26 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath