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. 7 × 10 = ______
  2. 40 − 10 = ______
  3. 21 − 10 = ______
  4. 2 × 10 = ______
  5. 4 × 10 = ______
  6. 45 + 20 = ______
  7. 49 + 20 = ______
  8. 68 + 20 = ______
  9. 42 + 20 = ______
  10. 11 + 10 = ______
  11. 75 + 20 = ______
  12. 62 + 10 = ______
  13. 24 + 10 = ______
  14. 12 + 20 = ______
  15. 14 + 10 = ______
  16. 76 − 10 = ______
  17. 79 + 10 = ______
  18. 65 + 20 = ______
  19. 64 − 10 = ______
  20. 71 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath