Oblicz wartości wyrażeń:
a) (1,125 - 7/8 ) : (-0,5)
b) (3/8 - 0,875) * 10,2
c) (3 2/5 - 2,06) : (-0,3)
d) (7 1/2 - 8,55) * (-2,2)
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a) (1,125-0.875):(-0,5)=0.25: (-0,5)= -0,5
b) (0.375-0.875) *10,2=(-0,5)*10,2= -5,1
c) (3,4-2.06):(-0,3)=1,34:(-0,3)= - 4,46
d) (7,5-8,55)*(-2,2)= -1,05*(-2,2)=2,31