Răspuns :
331x3=991
1232x3=3696
3013x3=9039
2103x3=6309
991+3=994
3696+3=3699
9039+3=9043
6309+3=6312
1232x3=3696
3013x3=9039
2103x3=6309
991+3=994
3696+3=3699
9039+3=9043
6309+3=6312