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. 33 + 10 = ______
  2. 36 + 10 = ______
  3. 2 × 10 = ______
  4. 79 + 20 = ______
  5. 28 + 20 = ______
  6. 9 × 10 = ______
  7. 65 − 10 = ______
  8. 83 + 10 = ______
  9. 4 × 10 = ______
  10. 39 + 10 = ______
  11. 5 × 10 = ______
  12. 61 − 10 = ______
  13. 81 + 20 = ______
  14. 56 − 10 = ______
  15. 73 + 20 = ______
  16. 61 + 20 = ______
  17. 39 + 20 = ______
  18. 45 + 20 = ______
  19. 55 + 10 = ______
  20. 23 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath