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. 79 + 20 = ______
  2. 8 × 10 = ______
  3. 52 + 20 = ______
  4. 31 − 10 = ______
  5. 50 + 10 = ______
  6. 12 + 20 = ______
  7. 32 + 20 = ______
  8. 31 + 10 = ______
  9. 64 + 10 = ______
  10. 44 + 20 = ______
  11. 93 − 10 = ______
  12. 66 + 10 = ______
  13. 18 + 20 = ______
  14. 5 × 10 = ______
  15. 66 + 20 = ______
  16. 71 − 10 = ______
  17. 73 − 10 = ______
  18. 37 − 10 = ______
  19. 85 + 20 = ______
  20. 2 × 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath