most of the questions on the math portion will be simple numbers that you can do in your head (remember no calculators are allowed) so the numbers would be easy to divide or multiply.
Know how to do ratios, multiplying/dividing fractions, common graphs (x^2,x^3,, etc), derivatives, integrals, mean, median, mode, trig functions (sin,cos), area under curve, basic algebra, rational functions, etc. Pick up a review book and do some practice problems.
In terms of calculus the if the questions will be very simple, nothing compared to grunt work in college calculus that you do.
I usually skip the word problems and do other problems to save time. Time is your biggest enemy in this section. Most important thing in this section is speed, do the problems you know first.