why do I find numbers such a difficult language?

My GED testing dates are coming up, July 9/10. I am, in a word, anxious. I've been dutifully reading the numbers manual Becca loaned me, learning more about fractions and polynomials than ever before, but I still can't shake the feeling that I'm going to bomb the math test. I've taken example tests for all the subjects and it's the only topic I'm not getting 90% on.