I've been toying with the idea of doing an OU maths degree. Not for the credentials but because I'd like to be good at maths... I hate not being able to underst

I've been toying with the idea of doing an OU maths degree. Not for the credentials but because I'd like to be good at maths... I hate not being able to understand it well. However I'm dismayed to hear the cost is now £15k.