Would be a great idea to have it.
Depends what you want. If you want an IT, computer science, engineering, physics or maths degree, you'd want to be doing well in 2u maths.
There's no pre-requisites, though, so if you think you'll be able to cope with the levels of maths in your degree, then that's all you need.
You can always take a maths bridging course if you want, too.