2, angle plus angle, angle minus angle; Earning a dollar and earning a dime is not enough to borrow a dollar and a dime.

3, points plus points, points minus points; Ten cents becomes ten cents, not ten cents becomes ten cents.

4. RMB (abbreviation: RMB; Currency code: code; Currency symbol: ￥ is the legal tender of People's Republic of China (PRC). The People's Bank of China is the national competent authority in charge of the management of RMB, and is responsible for the design, printing and distribution of RMB.

5. The unit of RMB is yuan, and the unit of RMB token is jiao and fen. 1 yuan equals 10 angle, 1 angle equals 10 minute. People's Republic of China (PRC) has issued RMB for more than 50 years. With the development of economic construction and the needs of people's lives, it will be gradually improved and improved. So far, five sets of RMB have been issued, forming a multi-variety and multi-series monetary system, such as paper money and metal coins, ordinary commemorative coins and precious metal commemorative coins. Except for 1, 2 and 5 cents, the first, second and third sets of RMB have been withdrawn from circulation. At present, the RMB in circulation is the fourth set of RMB issued by the People's Bank of China since 1987 and the fifth set of RMB issued in 1999, and both sets of RMB are in circulation at the same time.