6 becuri mici...6 becuri mari...60kw
6 becuri mici...12 becuri mari...96kw
1) Cate becuri mari sunt in plus?
12-6=6 (becuri mari)
2) Cati kw in plus consuma cele 6 becuri mari?
96-60=36 (kw consumati in plus)
3) Cati kw consuma un bec mare?
36:6=6 (kw consumati de un bec mare)
4) Cati kw consuma 6 becuri mari?
6×6=36 (kw consumati de 6 becuri mari)
5) Cati kw consuma 6 becuri mici?
60-36=24 (kw consumati de 6 becuri mici)
6) Cati kw consuma un bec mic?
24:6=4 (kw consumati de un bec mic)
Verificare:
6×4+6×6=24+36=60