Cate kilograme de mere raman dupa ce asaza cele 48 kg mere?
64 - 48 = 16 kg
In cate cosuri asaza cele 16 kg mere?
16 kg : 4 = 4 cosuri
In cate cosuri asaza cele 48 kg mere?
48 kg : 6 = 8 cosuri
De cate cosuri a avut nevoie bunicul?
4 + 8 = 12 cosuri
R: 12 cosuri