<p>In fact I think all you need to do now is practice! Rather than read the skill you may better do exercises.Try to accumulate your former errors and compile them in a book.
The posts are others and you can just neglect them!
Math is the easiest part in SAT. What you do is to generalize the exam point such as the polygonals and functions and learn some formulas.
I am an international student and now my score is flatuating around 2000 and ten days later I will sit on the examination room, maybe there are some spelling mistakes but I hope the words above can help you:)</p>