Yuan is the base unit of Chinese renminbi(RMB). It is used in the People's Republic of China. A yaun is also known . One yuan is divided into 10jiao. One jiao is divided into 10 fen. Chinese renminbi(RMB) include banknotes and coins.Banknotes were introduced in denominations of 0.1, 0.2, 0.5, 1, 2, 5,
10, 50 and 100 yuan. Coins were introduced in denominations of 0.1, 0.5
and 1 yuan.

In my country people usually buy things with cash. Sometimes people buy things with credit cards. But remember please. You cann't buy things with check!