What GRE math question types should you prepare for? And which are truly the most important GRE math concepts? In this post, we’ll take an in-depth look at GRE Quant concepts: how they are categorized and how frequently each major category appears on the test. Get ready to read about each type of math on […]

# Archive | *GRE Math

## Positive and Negative Square Roots on the GRE

Some questions to start: Can a square root be negative? Yes, there is such a thing as a negative square root. How would you deal with negative roots on the GRE? This question is actually fairly complicated, because it depends on how the GRE words the question. Let’s start with some practice problems before I […]

## Diagonals of a Polygon in GRE Geometry

Students love to skip over the basics, asking questions like: How many vertices does an octagon have? How many diagonals does an octagon have? What’s the difference between a regular octagon and, well, an octagon? And GRE geometry does delve into some complex polygon math. But before we get to that, I will begin with […]

## GRE Geometry Formulas

Perhaps you recall with more than a little dread your high school geometry class: fifteen-step proofs and the law of cosines were two things you were certain you’d never see again. Well, if you are taking the GRE, you were by no means mistaken—proofs and indeed all of trig are nowhere to be found on […]

## GRE Math: What’s the Difference Between Combination and Permutation?

Do you know the difference between permutation and combination? No? You’re not alone. Combinations and permutations are the bane of many students. Yet, what I’ve noticed over the years is it’s not so much both of them that are the issue as it is which one to use for a particular problem: the combination vs […]

## How to Round to the Nearest Integer | GRE Math

What does it mean to round a number? Rounding means to make a number shorter or simpler, but keeping it as close in value as possible to the original number. Let’s take a closer look: Rounding to the nearest integer The most common type of rounding is to round to the nearest integer. The rule […]

## FAQ: Should I Study Probability?

I have 30 days to the test and am terrified about probability…what should I do? There is perhaps no other topic on the GRE math that instills as much dread in students as does probability. Understandably, students will obsess over this topic more than they will other topics. However, such an approach won’t only lead […]

## Learning from GRE Math Practice

I’m going to ask you a question whose answer seems painfully obvious. What is the purpose of doing practice GRE math questions? Take a minute to really consider that question in its entirety and explore the implications of your answer. If your answer was any of these, or something similar to these, then it’s too […]

## GRE Article of the Month – August 2014: The Game of Math

Don’t Teach Math, Coach It By Jordan Ellenberg for The New York Times In a recent New York Times article, Don’t Teach Math, Coach It, Jordan Ellenberg, a mathematic professor at the University of Wisconsin, talks about how to get kids excited about math. He starts off with a short anecdote about how the young […]

## GRE Math: A Rectangle & Parallelogram with Equal Area

Today, we’ll quickly look at how a rectangle and parallelogram can have the same area. In the diagram to the above, the parallelogram and rectangle share a vertex (D), one vertex of the rectangle (E) is on a side of the parallelogram, and one vertex of the parallelogram (C) is on a side of the […]