aelf
Ashen One
Like I said, in the grand scheme of things allowances for dyslexics don't really matter. Maths is a different case. A dyslexic with allowances can function somewhat as well as a normal person without allowances (with a few exceptions of course). This is not the case with mathematics.
I'm saying, usually there is time. Tests test the skill that is being tested, at least when it comes to mathematics.
I'm not sure where exactly you've made a distinction between how dyslexia affects people's abilities and how discalculia does. But, if that's what you're saying, where does the difference arise?
In most of the exams I've taken, there's barely any spare time. Sure, there are people who are so good (or so bad) that they finish early, but the average test-taker has just about enough time to finish and maybe re-check his/her work once.