Răspuns:
98+8×[1004-4×(8:2×2-4:4×2)]=
=98+8×[1004-4×(4×2-1×2)]=
=98+8×[1004-4×(8-2)]=
=98+(1004-4×6)=
=98+8×(1004-24)=
=98+8×980=
=98+7840=7938
[1+2×(6+6÷3)-5]÷6=
=[1+2×(6+2)-5]÷6=
=(1+2×8-5)÷6=
=(1+16-5)÷6=
=(17-5):6=
=12÷6=2
1000-[409×(6÷3)+56÷8×5]=
=1000-(409×2+7×5)=
=1000-(818+35)=
=1000-843=157
