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. 9 × 10 = ______
  2. 4 × 10 = ______
  3. 17 + 10 = ______
  4. 28 + 20 = ______
  5. 52 + 10 = ______
  6. 35 − 10 = ______
  7. 20 + 20 = ______
  8. 86 + 20 = ______
  9. 70 + 10 = ______
  10. 38 − 10 = ______
  11. 5 × 10 = ______
  12. 25 + 10 = ______
  13. 76 + 20 = ______
  14. 79 + 10 = ______
  15. 40 + 20 = ______
  16. 8 × 10 = ______
  17. 72 + 10 = ______
  18. 33 − 10 = ______
  19. 1 × 10 = ______
  20. 12 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath