I'm planning to go into CompSci as a degree, and I'm gonna take:
Maths
Further Maths
Physics
Chemistry
Computer Science
Whilst Further Maths isn't CRUCIAL for a CompSci course, Maths on it's own does. From there, after taking CompSci or IT, Pick subjects that compliment those. So one way to go around this is Sciences. Physics in particular, which goes hand in hand with Mathematics.