Hey, Acanthus. Welcome to bl!
I'll tell you that sekio was right when he said that the more math you take, the better. However, I don't think you'll take every math they offer, so for specifics, talk to an academic advisor. It's their job to ensure you take the correct classes to get the degree you want, so don't be shy!
You mentioned not knowing whether to take statistics. Take it. Everyone, regardless of major, should be required to take that course. Statistics are so far-reaching, they're everywhere around us. So much data is thrown at us, and we should know how to make sense of it all instead of taking it as gospel. The news, commercials, print media all want our dollars (or whatever currency) and we should be careful in how we allocate our funds. "Is this product really effective this percentage of the time? What size was the survey? WHO was surveyed? Were they compensated?" Taking statistics makes you think differently.