Math + Neural Networks

Hey guys, I'm a computer science student, currently on break from uni, and I was just wondering if you need to be massively good at maths to mess with neural networks? The reason I ask? I'm bored as hell and feel like taking up a challenge.

Just to put things into perspective, I have to do a supplementary examfor computational mathematics, because I fail hard at boolean algebra and karnaugh maps.

Thanks for your time 4chan, I know you'll provide me with the right answer.