Math...What are all the types of math that you should know before college? Math...What are all the types of math that you should know before college (after high school)? I'm asking this because I just got my GED, but I passed the (Individual test) Math GED 3-4 years ago. So, I'm in the refresher mode on things in math that can be easily forgotten if not used constantly. Like fractions- Arithmetic, Pre-algebra, Algebra, Geometry, ect.. I know I need to refresh in Pre-algebra, Algebra, Geometry, and kinda fractions in Arithmetic (which I'm currently doing). What are the other types (besides the ones I've listed) of math that's required to be known in college? I know if I don’t know certain things in math that I should know in college they'll teach me, but I don’t want to waste grant money, and my time, energy into doing that in under 101 courses. I'd rather do it on my own (which I know I can do, just need to know which types of math to research & refresh in.