Teachers who take an Olympic math class outside will usually let you practice the entrance examination paper in front of the bridge at the end.
I remember that time my Olympic math teacher asked us to do all the questions from 1997 to 2006.
Remember: it is important to have a book! Go to a foreign language school
There should be one in nanzenji.
I suggest you buy both English and Chinese, but you must do math ~
There are several questions on the test paper, in that book! (The teacher in Jinqiao said, at least in my exam year)
Good luck ~