Just skim through passages to get the main idea and highlight key facts
Pay no attention to graphs/data/equations. One or more may not come up in the questions
Prioritize questions and answer the ones that do not require the passage to leave time for the data interpretation/forming conclusion questions
Pay attention to when the words "least likely", "not", and "except" are used in a question so you don't misread it
Know common equations, trig conversions, logarithms, etc. that will help with math on C/P
Pay attention to whether data is statistically significant (usually in asterisks) when forming conclusions
Don't get stuck on a ridiculous passage b/c you feel you have to go in order. Move on and come back to it later
When marking questions for review later, start with the ones you feel you can most likely get with little additional time, and to the impossible/time consuming ones last. Better use of your time.
This worked very well for me, so hopefully it helps you out