I get what you mean. I was going to say before, but thought its stupid, but i guess some people are just "born with it", it's no secret some people have the left/right side of their brain more developed then there's, some are artistic, some can't draw anytihng etc. I think it's not different for maths. Although ANYONE can IMPROVE in maths, I always think some people are always going to be better off. I get what you mean about it just CAME TO YOU, and how you don't understand -ve, +ve, LOL, because im in the same boat :uglystupid2:. Ah well. lol.
It also comes down to how teachers explain. Sometimes i get teachers who just write on the board, or give explanations which are FROM OUR TEXTBOOK, which i could have easily looked at myself, other times they write/give extensive notes with useful annotators and a break down of the process. Ah well, can't be bliss all the time.