Răspuns:
6x523=6x(500+20+3)=
6x500+6x20+6x3=
3000+120+18=3138
73x467=74x(400+60+7)=
73x400+73x60+73x7=
29200+4380+511=34091
26x231=26x(200+30+1)=
26x200+26x30+26x1=
5200+780+26=6006
46x734=46x(700+30+4)=
46x700+46x30+46x4=
32200+1380+184=33764
256x672=256x(600+70+2)
256x600+256x70+256x2
153600+17920+512=172032