Răspuns :
b.1+4+9+16+25+36+49+64+81+100=55+36+49+64+81+100= 91+ 113+181=204+181= 385
a.112
c.1111+10.000+100.000= 11.111+100.000=111.111
a.112
c.1111+10.000+100.000= 11.111+100.000=111.111