Inequalities

Inequalities are where careless algebra habits go to die: flip the sign when multiplying by a negative, test boundary values, and never square both sides without thinking about signs. This topic set drills pure inequality manipulation plus the GMAT favorites — absolute value inequalities, compound ranges, and inequality logic inside word problems. The test cases that matter are almost always the same five: a big positive, a fraction between 0 and 1, zero, a fraction between −1 and 0, and a big negative.