This is a post to clarify a potentially confusing passage in the OG. In the GRE OG 2e, on p. 134, as well as in ETS’s GRE Mathematical Conventions PDF on p. 5, point 9, we find a paragraph discussing quotients and remainders that utilizes the formula n = qd + r. This formula pertains […]

# Archive | GRE Arithmetic

## Proportions on the GRE

Proportions are extremely common on the GRE. If you don’t have a strong grasp of them, and you are busy trying to figure out combinations/permutations or probability, stop. Focus your attention on mastering proportions before moving on to more tertiary concepts. So let’s start basic. Proportions can be broken up into two groups: direct proportions […]

## Student Question on ETS Material: Graphs of Absolute Value Functions

Here’s a question that one of our students sent in– ask and you shall receive! 🙂 “Hello team Clemmonsdogpark. First I’d like to say I love this site, I’ve learned so much! I’m posting a question about a certain math problem I found on the official ETS website. I tried to solve it and got […]

## GRE Math: Absolute Values

On average you will see at least one question on the Revised GRE dealing with absolute values. You may even see a few. Yet, absolute value gets lost in the prep fray amongst the more popular concepts. So if you don’t want this relatively innocuous concept to surprise you test day read on. What […]

## GRE Math Basics: Quick Tips

Prime numbers 2 is the smallest prime number 2 is the only prime even number 1 is not a prime 3, 5, 7 are the only three consecutive odd integers that are each a prime. Digits In the integer 5,432, 5 is the thousands digit, 4 is the hundreds digit, 3 is the tens […]

## GRE Math Video Lessons: Series and Counting Basics

A relatively popular concept on the GRE math is series – when you have a list of numbers that follow a certain pattern(e.g. consecutive numbers). Usually, the question will ask you to add up all the numbers that are part of the series. Today, we are not going to go quite so far. Instead, we are going […]

## Math Basics: Exponents

One thing is certain on test day – you will see exponents. Another thing is also certain – those exponent problems will be meant to trick you. So, know your exponent properties, but also be aware that knowing the fundamentals alone won’t guarantee success. Tread carefully, and check your work. You should be able to answer most […]

## GRE Math – Essential Tips For Factoring

Let’s say you have a large number, and you need to break it down into its prime factors (prime factors are prime numbers, e.g. 2, 3, 5, 7). When dealing with small numbers, such as 24 (2 x 2 x 2 x 3), finding the prime factors isn’t too tough. But what about 324? Many […]

## Math Basics – Distance, Rate and Time

The 4th of July weekend is upon us, and many of us will be taking road trips, or even taking a plane somewhere. To commemorate this collective movement, let’s learn the most fundamental formula when dealing with movement over time. First, let’s meet Bob… Bob drives at an average rate of 50 mph from Berkeley […]

## GRE Math Tips – Getting Rid of Your x’s and y’s

The GRE Math section is full of problem solving questions, which test exactly the way you do that—solve problems. The key is that you solve the problem in the shortest amount of time possible. Unfortunately, many students have difficulty either finding a solution for a problem, or, if they do, finding that solution quickly. Part […]