You sad bunch of losers! still on here posting your insults
Oh the irony!
To be honest I think most of the replies to you have been quite polite!
It's kind of pointless me adding to what others have said, but different people will approach the whole thing differently, plus the maths thing sounds to be something that is fairly recent, hence not to much info on it on this thread.
I guess the things they do give you for preparation (the ATC motivation paper, the cubes & diagramming) are given as they are things that are fairly specific to the process and less likely to have been seen elsewhere in life/education, but it doesn't prevent them from setting anything else that might reasonably be expected of the job.