my son's scores for nonverbal were 35th percentile in 3rd grade; we took him in for a full eval. and while he has very low processing speed, most of his actual ability in math is pretty high. This 35th percentile for him meant he wasn't finishing the sections, not that he couldn't understand the work.
Do you think you have speed issues re:computation or similar? I know I myself have had the same issues with speedy recall of math facts as my son, and have lived to have a great job in the I.T. field, so it is NOT necessarily the end of any chance of success in mathy-things. For folks/parents with kids with a number like that, I would caution reading too much into it, feeling like 'math is too hard' for that person and giving up entirely...as one number could definitely be misleading.
