The unit conversion of RMB is: 1 yuan = 10 angle, 1 angle = 10 minute, 1 yuan = 100 minute.
For example, a 1 yuan bill can be changed into (10) 1 minute, (5) 2 cents and (2) 5 cents.
The calculation method of yuan angle is as follows:
1. Direct addition and subtraction conversion when the unit is the same.
Such as: one 10 yuan, one 5 yuan, one 1 yuan * * is (? ) yuan. Calculation: 10+5+ 1= 16 (yuan)
18 angle -9 angle =9 angle, 57 points -6 points =(5 1) points =(5) points, 4 angles +5 angles +6 angles = 15 angles = 1 yuan 5 angles.
2. When the units are different, on the basis of proficiency in oral calculation, the corresponding units shall be converted as needed.
For example: 7 yuan 2 jiao +2 yuan =9 yuan 2 jiao. 1 angle -7 points =3 points, 2 yuan-1 yuan 5 angle =20 angle-15 angle =5 angle.
32 angle =(3) yuan (2) angle, 5 yuan 3 angle =(53) angle, 1 1 point =( 1) angle (1) point.
3. solve the problem: an exercise book, 3 yuan is 50 cents. Lele paid 5 yuan, a salesman. How much should I get back?
5 yuan -3 yuan 5 Angle =50 Angle -35 Angle = 15 Angle = 1 yuan 5 Angle.
Answer: You should get back 1 RMB 50.