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. 75 + 10 = ______
  3. 58 + 20 = ______
  4. 4 × 10 = ______
  5. 52 − 10 = ______
  6. 45 + 20 = ______
  7. 80 − 10 = ______
  8. 66 + 10 = ______
  9. 44 − 10 = ______
  10. 8 × 10 = ______
  11. 9 × 10 = ______
  12. 26 + 10 = ______
  13. 32 + 10 = ______
  14. 23 + 10 = ______
  15. 40 + 20 = ______
  16. 76 + 20 = ______
  17. 71 + 20 = ______
  18. 6 × 10 = ______
  19. 69 + 20 = ______
  20. 72 + 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath