Răspuns :
43+275+57×257=
257x(43+57)=
257x100=25700
175×123+27×123-102×123=
123x(175+27-102)=
123x100=12300
257x(43+57)=
257x100=25700
175×123+27×123-102×123=
123x(175+27-102)=
123x100=12300