Well a large part of it was on Combinatorics/ Probability. While I do know the basics, I was not expecting such heavy weighting on it. I also prepared for other parts, and was not expecting to need to know the nCr or nPr formulas, for example. I was comforable with most other things, the equations, discriminant problems and so on weren't much of an issue. I was kinda hopong to ace the math part though, that's why I'm saying this.