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. 69 + 20 = ______
  2. 43 + 20 = ______
  3. 71 + 10 = ______
  4. 81 − 10 = ______
  5. 86 + 20 = ______
  6. 12 + 10 = ______
  7. 2 × 10 = ______
  8. 3 × 10 = ______
  9. 8 × 10 = ______
  10. 73 + 20 = ______
  11. 19 + 20 = ______
  12. 59 + 10 = ______
  13. 61 + 10 = ______
  14. 76 + 10 = ______
  15. 52 + 10 = ______
  16. 86 − 10 = ______
  17. 1 × 10 = ______
  18. 16 + 10 = ______
  19. 42 + 20 = ______
  20. 20 + 20 = ______
Matemáticas mentales Worksheet — Free Printable with Answer Key | WaffleMath