Computer Science, indeed, is a very wide area, so that "Software Engineering", "Information Systems" etc. are branches of it (and from "Information Technology", which covers with more enphasis some stuffs about Management e Development, more than CompSci). Because of this, it's important that you learn a little from everything, so that when you choose an specific area to following on, you have the basis knowledge necessary.
Once it's Computer Science (or, reading by another way, The *Science* of Computing), it's somewhat natural the high bulk of mathematics in it, once CompSci is the initial branch of mathematics that took "created own life", investigating things that were even outside maths field.
So, it really depends of what carrer you want you follow, and it's like was commented: development of games demands Hardcore Math. Scientific Software i don't need to say. AI (Artificial Inteligence) and BI (Business Inteligence) too. Even some fundamentals of networks comes from mathematics (you maybe will heard about Dijkstra's algorithm... it's used in network routing). So, that's it.