zad.4
a) 5 - 7 = -2
b) -10 - 4 = -14
c) 6 - 7 = -1
d) 3 - (-2) = 5
e) -5 - (-7) = 2
f) 6 - 0 = 6
zad.5
a) u=-6 w=-8
u-w= -6-(-8)=2
w-u=-8-(-6)=-2
u-w > w-u
b) u=-5 w= 3
u-w= -5-3=-8
w-u=3-(-5)=8
u-w < w-u
c) u=-10 w=-4
u-w= -10-(-4)= 14
w-u=-4-(-10)=6
u-w >w-u
zad.6
a) 1, 0, -1, -2, -3
b) -6, -7, -8, -9, -10
c) -3, -4, -5, -6, -7