don't worry about Math, Tony.... I'm lousy, too, and managed to get as far as a CPL (commercial licence)
I still use my fingers sometimes heehee (oooops.. maybe I shouldn't out myself heehee)
Lots of math problems you can get done using a simple calculator. And for other things, like liters/gallons, there are simple forumlas you can either learn by heart or put on a "cheat sheet"
Don't let poor math keep you from trying!! good luck!
Westy