Is the GRE Math section harder than high school math?
The math concepts (Arithmetic, Algebra, Geometry, Data) are generally at a high school level. However, the GRE is difficult because the questions are designed to be "tricky" and test your logical reasoning and efficiency rather than just your ability to solve an equation.
How important is learning high-level vocabulary for the GRE?
Very important. The Text Completion and Sentence Equivalence tasks rely heavily on your ability to understand nuanced words. You often need to know the secondary meanings of common words to choose the correct answer in complex sentence structures.
Can I choose which scores to send to universities if I have taken the test twice?
Yes, through the ScoreSelect option. You can choose to send only your most recent scores, or scores from all your test attempts. Universities will only see the specific scores you choose to share with them.