If you are using the Chinese number system, and you represent the number 22,
 
What directional rod must last  '2' represents and What directional rod must the first '2' represents?
 
Why it represents like that?
 
Answer:
 
The directional rod must last  '2' represents \(=\)
 
The directional rod must first '2' represents \(=\)
 
It represented like that for