few questions (a mere 2 to 5%) will directly test basic
math. But knowledge of basic math is crucial to succeeding on the
test, since it is assumed by almost all of the test’s 50 questions.
In other words, you need to understand these concepts and be able
to apply them to everything from algebra to trigonometry problems.
You probably know some of these topics like the back of
your hand, while others demand a refresher. Either way, it can’t
hurt to thumb through this chapter. If you know it all, you’ll fly
right through it. If there’s something you don’t know, you’ll discover
your weakness now, before test day.