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. 61 + 20 = ______
  2. 14 + 20 = ______
  3. 50 + 20 = ______
  4. 67 + 20 = ______
  5. 7 × 10 = ______
  6. 70 − 10 = ______
  7. 57 + 10 = ______
  8. 93 − 10 = ______
  9. 1 × 10 = ______
  10. 76 + 10 = ______
  11. 8 × 10 = ______
  12. 29 − 10 = ______
  13. 28 + 10 = ______
  14. 16 + 20 = ______
  15. 45 + 20 = ______
  16. 87 + 20 = ______
  17. 68 + 10 = ______
  18. 29 + 20 = ______
  19. 37 + 10 = ______
  20. 94 − 10 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath