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. 71 + 20 = ______
  2. 8 × 10 = ______
  3. 29 + 20 = ______
  4. 11 + 10 = ______
  5. 6 × 10 = ______
  6. 21 + 10 = ______
  7. 1 × 10 = ______
  8. 63 + 10 = ______
  9. 58 + 10 = ______
  10. 23 + 10 = ______
  11. 67 + 20 = ______
  12. 2 × 10 = ______
  13. 34 + 10 = ______
  14. 15 + 10 = ______
  15. 68 − 10 = ______
  16. 83 + 20 = ______
  17. 52 + 20 = ______
  18. 11 + 20 = ______
  19. 70 + 10 = ______
  20. 49 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath