Question

Oblicz : (-3)-(-5)+(-9)-(+4)= 13-(+15)-(-23)+(-30)= (-40)+(-35)-(+50)-(-65)= Proszę o jak najszybszy wynik bo mam to na jutro ! :((

Answer 1

....=-3+5-9-4=-11

...= 13-15+23-30= -9

...= -40-35-50+65= -60

 

Answer 2

(-3) + 5 - 9 - 4 = 2 - 9 - 4 = (-7) -4 = -11

13 - 15 + 23 - 30 = (-2) +23 - 30 = 21 - 30 = -9

(-40) - 35 - 50 + 65 = (-75) - 50 +65 = (-125) + 65 = -60

 

Liczę na naj ;)