Odpowiedzi

2010-01-14T20:15:41+01:00
(-5)+12-(-7)+6= -5+12+7+6 = 20

[(-4)+(-3)*2]= -4+ (-6) = -4-6= -10

(-9)+[(-16):(-2)+(-7)]= -9 + (8 -7) = -9 + 1 = -8
2010-01-14T20:15:59+01:00
(-5)+12-(-7)+6= 7+7+6 = 20

[(-4)+(-3)*2]= [(-4)-6]=-10

(-9)+[(-16):(-2)+(-7)]=-9+(8-7)=-8
2010-01-14T20:16:18+01:00
(-5)+12-(-7)+6= 20
[(-4)+(-3)*2]=-10
(-9)+[(-16):(-2)+(-7)]= -9 + (8 -7) = -9 + 1 = -8