# GRE Arithmetic

GRE arithmetic is one of the content areas you'll encounger on the Quantitative Reasoning Measure. This area includes topics such as integer properties, divisibility, factorization, exponents, roots, percents, ratios, rates, and more. Brush up on your math basics to ace GRE arithmetic.

Learn arithmetic basics and tips## Most Popular GRE Arithmetic

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 […]

If GRE math concepts were people, Least Common Multiple (LCM) would hardly be the most noticeable person in the room. After all, we have the really big personalities who always elbow for attention: Probability, Work Rates and Combinations (none of whom would win the popularity context). Then, there are Exponents standing together menacingly with Coordinate […]

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 […]

## Most Recent GRE Arithmetic

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 […]

Here’s a question that one of our students sent in– ask and you shall receive! 🙂 “Hello team Magoosh. 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 […]

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 […]

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 […]

What better way to spend the weekend than with your favorite friends: integers? Okay, maybe integers aren’t your best friends. But trust me, they are much better company than irrational numbers. Below are five problems dealing with integers and integer properties. They are definitely not too challenging. In fact, many can be solved using mental […]

If you’ve ever come across a number with an exclamation mark in front of it, that’s the factorial sign, e.g. 5!. Factorials don’t come up too often on the GRE, and when they do, it’s usually on harder problems. Still, you don’t want to be faced with an exclamation sign next to a number and […]

Here is a good problem to test your understanding of prime factors, not to add multiples. See if you can finish the problem in less than 2 minutes. If P is the product of all of the positive multiples of 11 less than 100, then what is the sum of the distinct prime factors of […]