Do Electricians need to be good a math?

I know math is needed to be an Electrician. But what level? Algebra? I want to become an Electrician, but I suck at anything other than basic math. To give you an idea, I failed Algebra twice... The physical work is not an issue with me because my uncle remodels homes and I help him every once in a while. He doesn't do the electrical work though so he can't help me.