Applied math skills is not a problem, nor are the concepts. I have worked in accounting/ finance since taking Cal in 93. I managed statistical methods fine in 2000.
My issue would be if its like the SAT where they ask a bunch of geometry theory or ask me to actually do a solve for Y algebra problem. I'm more likely to solve a Limit than basic algebra. Shoot, I took my 3rd grader's word problem and made it more complicated than it was...
I definitely am not "fearful" of numbers or I wouldn't be in the field I am.
I took accounting exams back when calculuators were not allowed!

I forgot to bring a calculator to exams when they were allowed.
If anything were a necessity it would be reviewing econ terms and definitions. Australian theory draws a blank other than being a major field of study. I'm not even sure that was in my intro to econ classses in 93!
I need to give myself more credit. I am intellectually capable of anything I set my mind to do. Honestly, once a math geek, always a math geek... You certainly don't manage As in Calculus, Statistics, etc. and suddenly "forget" how it all works. I aim to WOW, not just pass.
Frankly, I have a fear of standardized tests and at my age and skill level, I really should just get over it. I need practice taking tests more than actually acquiring knowledge of the test material. A short review of the material covered is all I've ever studied for any tests!
Maybe I need to check out the local CC to see if they offer "remedial test skills" or something like that. LOL Grad student taking remedial test taking, gotta love that one.