This video covers the sections that will be tested in quantitative part of the GRE exam. Also It discusses the different question types that will be used. A good starting point for the GRE would be below study materials.
Official GRE Super Power Pack 2/E (Test Prep) 2nd Edition :
http://amzn.to/2rKfnCN
Book of GRE Practice Problems (Manhattan Prep GRE Strategy Guides) Second Edition :
http://amzn.to/2rsSp3m
source
