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. 38 + 10 = ______
  2. 19 + 20 = ______
  3. 66 + 20 = ______
  4. 16 + 10 = ______
  5. 99 − 10 = ______
  6. 32 + 20 = ______
  7. 2 × 10 = ______
  8. 85 + 20 = ______
  9. 52 + 20 = ______
  10. 3 × 10 = ______
  11. 72 + 10 = ______
  12. 6 × 10 = ______
  13. 18 + 20 = ______
  14. 16 + 20 = ______
  15. 70 + 20 = ______
  16. 51 + 20 = ______
  17. 49 − 10 = ______
  18. 21 + 10 = ______
  19. 34 − 10 = ______
  20. 80 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath