Practice solving math problems (It works for me). As long as you don't see math as a hard subject, be patient and determined. Even if you don't get the correct answer at first at least you've tried to stretch your mind. It will work wonders. So, whenever you encounter a hard math problem, try to solve it and make sure you have an answer before looking for the key answers.
Just Analyze it before you do the step by step. Analyze it word by word to know what it means and what is talking about also to know the answer..