The most important part of the math section is learning the ETS tricks. For example, you might get a diagram with something that looks like a right triangle, but doesn't have the little box at the 90' corner. So, it's not necessarily a right triangle and it's pretty likely that the question can't be answered. Most of the algebra can be solved in a few seconds once you know the correct way of approaching the problems. If you find yourself spending more than 30 seconds on any math problem, you're missing something and should check your strategy.

For vocab, don't try to memorize. Instead, try multiple levels of encoding; use each word in a question about someone you know, in a statement about yourself, and in a statement about something you're very familiar with (so, NOT "Dad's car is antediluvian," but "Dad's car was so antediluvian that the Penguin couple used it to get to Noah"*)

*This is a very, very funny joke if you know the root of "antediluvian."