Just to throw my 2 cents worth in on this subject. Math is important, but be realistic. You are not trying to do rocket science. The ability to solve basic equations is necessary, but not mandatory. There are a lot of potential apprentices out there that fail the test given them for the apprenticeship program. They failed, not because they didn't know math, they failed for the same reason a lot of people do, they just lock up in a testing situation. I have worked a few of them in my crews over the years. Maybe they can't take a test, or even do calculations, but when they went to the field, they were just like a fish in water. They took off with it and did just as well, if not better that some of the "formal apprentices" I have seen.
ITO hit the nail on the head. Clean, dependable, and having the right attitude is more important than " does this person know "Ohm's Law". Everything else can, and will come in time.
I personally have been in this trade since 1968, have never taken algebra, never been to apprencticeship school, but yet just by working in the field around a lot of experienced people, their knowledge rubbed off on me. In 1986 I passed my State Master's exam and have held the license ever since then. In 1988 I had a chance to go into engineering and took the leap. I am now approachin my 20 year date in engineering, with an international company. My opinions and knowlege are respected. This was all done with no formal apprenticeship or math education.
What I am saying is..... go for the apprenticeship training... it is worth it. If you don't get in, don't worry, if you have the drive and the desire, you can do anything you want, including being an electrician.