Operacions amb enters. 2
  • 1. (-4)+(-5)=
  • 2. (+5)-(-8)=
  • 3. (-8)-(+9)=
  • 4. (-3)-(+7)=
  • 5. (-7)+(+8)=
  • 6. -4+6=
  • 7. +6-12=
  • 8. -7-8=
  • 9. -8-(+8)=
  • 10. +9-7=
  • 11. (+9)·(-7)=
  • 12. (-7)·(-8)=
  • 13. (+14):(-2)=
  • 14. (-5)·(-6)=
  • 15. (-35):(+7)=
  • 16. (-42):(-7)=
  • 17. -8+12=
  • 18. (-4)-(+9)=
  • 19. (-9)-(-15)=
  • 20. -15+4=
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