Zad 9 str 86 Zbiór zadań Matematyka wokół nas gimnazjum
c) [0.8-(1.2*5/12-0.8)] : (-1/8)
d) -100:{-[2i3/4-(-0.5)*(-1i1/2]}
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c)[0,8-(12/10*5/12-0,8)]:(-1/8)=[0,8-(60/120-0,8)]:(-1/8)=[0,8-(0,5-0,8)]:(-1/8)=[0,8-(-0,3)]:(-1/8)=
[0,8+0,3]:(-1/8)=11/10*(-8)=-88/10= -8i8/10=-8i4/5
d)-100:{-[11/4-(-1/2)*(-3/2)]}=-100:[11/4-3/4]= -100:8/4= -100:2= -50