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. 1 × 10 = ______
  2. 44 + 20 = ______
  3. 9 × 10 = ______
  4. 91 − 10 = ______
  5. 68 − 10 = ______
  6. 47 − 10 = ______
  7. 35 + 10 = ______
  8. 61 + 10 = ______
  9. 31 + 20 = ______
  10. 89 − 10 = ______
  11. 81 + 20 = ______
  12. 52 + 20 = ______
  13. 5 × 10 = ______
  14. 77 + 20 = ______
  15. 67 + 20 = ______
  16. 59 + 10 = ______
  17. 7 × 10 = ______
  18. 26 + 20 = ______
  19. 78 + 10 = ______
  20. 16 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath