The shortened GRE runs just under two hours: one Analytical Writing task, two Verbal Reasoning sections and two Quantitative sections. Verbal and Quant are each scored 130–170; the essay is scored 0–6 separately and many programmes barely look at it.
Section-level adaptive. The GRE is not question-by-question adaptive like the DET. Your performance on the FIRST Verbal section decides the difficulty of the second, and the same for Quant. Two things follow: the first section of each type matters more than it feels like it should, and within a section you can move freely — flag a question, answer it later, change an answer. Use that. There is a review screen; get comfortable with it before test day.
Quant is not hard mathematics. It is school-level arithmetic, algebra, geometry and data interpretation, asked in ways designed to reward reasoning over calculation. The on-screen calculator exists and using it is usually a sign you have missed the shortcut. Quantitative comparison — decide whether A is bigger, B is bigger, they are equal, or it cannot be determined — is the item type that most rewards practice, because "cannot be determined" is a real answer and students under-choose it.
Verbal is vocabulary in context. Text completion and sentence equivalence turn on knowing precise meanings of moderately rare words, and sentence equivalence needs TWO answers that produce the same meaning — not two answers that are both defensible. Reading comprehension passages are dense; the questions are answerable from the text alone, and importing outside knowledge is the standard trap.
Pacing. Roughly 1 minute 50 per Quant question and 1 minute 30 per Verbal question. Practise against a clock from the beginning, because running out of time on the second section is what wastes a good first section.