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. 66 + 20 = ______
  2. 21 − 10 = ______
  3. 7 × 10 = ______
  4. 46 + 20 = ______
  5. 81 − 10 = ______
  6. 30 + 10 = ______
  7. 83 + 10 = ______
  8. 3 × 10 = ______
  9. 16 + 20 = ______
  10. 61 − 10 = ______
  11. 31 − 10 = ______
  12. 8 × 10 = ______
  13. 74 + 20 = ______
  14. 4 × 10 = ______
  15. 72 + 20 = ______
  16. 30 + 20 = ______
  17. 73 + 20 = ______
  18. 77 + 20 = ______
  19. 27 + 20 = ______
  20. 51 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath