Grade 18

Just got back from my vocational rehab evaluation. They produced a very thick 'dossier' on me... and it turns out that I read and write at an 18th grade level. My math is however at the sixth grade level. As I knew, I have a learning disability in the maths.
What really bowled me over with this eval is the part that said I would probably be happiest working and socializing with others who are at or above the 18th grade level. What is that, a Master's degree?
I'll be applying for technical college next week. No idea what I'll be taking but it will have to do with computers.