Răspuns :
212+221+122=
-2•1•2=2•2=4
-2•2•1=4•1=4
-1•2•2=2•2=4
Rezolvare:433+122=555
-2•1•2=2•2=4
-2•2•1=4•1=4
-1•2•2=2•2=4
Rezolvare:433+122=555
Răspuns:
1221
Explicație pas cu pas:
Suma=114+141+411+122+212+221=(100+100+400+100+200+200)+(10+40+10+20+10+20)+(4+1+1+2+2+1)=1100+110+11=1221.