3*3+3=
=9+3
=12 tarten a pregatit bunica
12:3=4 nepoti ar primi cate 3 tarte...=> daca 1 nepot ramane fara tarte,atunci
=> bunica are 4+1=5 nepoti
12:5=2 rest 2...=> daca fiecare nepot prineste cate 2 tarte ,raman 2 tarte
tarte=12
nepoti =5
verificare
12:3=4 nepoti primesc cate 3 tarte si 1 ramane fara
12-(2*5)=
=12-10
=2 tarte raman in plus in cazul in care fiecare nepot primeste cate 2 tarte.
