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. 52 + 20 = ______
  2. 4 × 10 = ______
  3. 57 + 10 = ______
  4. 27 + 20 = ______
  5. 80 + 10 = ______
  6. 1 × 10 = ______
  7. 15 + 20 = ______
  8. 33 + 10 = ______
  9. 16 + 20 = ______
  10. 64 − 10 = ______
  11. 39 + 10 = ______
  12. 48 − 10 = ______
  13. 65 − 10 = ______
  14. 24 − 10 = ______
  15. 42 + 20 = ______
  16. 64 + 20 = ______
  17. 78 + 20 = ______
  18. 35 − 10 = ______
  19. 61 + 20 = ______
  20. 19 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath