179+29=179+(21+8)=208
4217+67=4217+(53+14)=4284
537+48=537+(43+5)=585
124+18=124+(16+2)=142
906+35=906+(34+1)=941
1072+25=1072+(18+7)=1097
179+29=179+(21+8)=208
4217+67=4217+(53+14)=4284
537+48=537+(43+5)=585
124+18=124+(16+2)=142
906+35=906+(34+1)=941
1072+25=1072+(18+7)=1097