The biggest secret to GMAT Quant success is a simple one: identify and study the correct Quant concepts. But what are the GMAT math topics? And which ones are the most important? To answer all of these questions, I looked at official GMATPrep tests 3 and 4, and the Official Guide for the GMAT Review […]

# Archive | *GMAT Math

## GMAT Math: How to Divide by a Square Root

A lot of students prepping for GMAT Quant, especially those GMAT students away from math for a long time, get lost when trying to divide by a square root. However, dividing by square roots is not something that should intimidate you. With a short refresher course, you’ll be able to divide by square roots in […]

## Challenging GMAT Math Practice Questions

Here are fifteen challenging questions for GMAT math practice with explanations. Can you keep the GMAT Quant pace, doing these in under 90 seconds each?

## Absolute Value Inequalities

Absolute value inequalities is an extremely difficult question category on the GMAT. Learn how to solve them in this post!

## GMAT Quant: Rates and Ratios

What are rates and ratios? How do rate and ratios problems differ? Hint: Not that much. Original photo by Pierre Rougier In fact, rates are just ratios in disguise. Here are a four GMAT practice problems exploring rates and ratios. Remember: no calculator! Rates and Ratios Practice Problems 1) Someone on a skateboard is traveling 12 miles […]

## Number Sense for the GMAT

What is number sense and how can you recognize number sense problems on the GMAT? Before we get into the details, let’s start with a few number sense practice problems. Remember, no calculator. Warm-Up Problems 1) Rank those three in order from smallest to biggest. (A) I, II, III (B) I, III, II (C) II, I, […]

## Common GMAT Topic: Descriptive Statistics

Here’s a whirlwind tour of one of the most frequently tested sets of concepts on the GMAT Quantitative section: GMAT statistics. You don’t have to be an expert on statistics: a little goes a long way. Let’s learn some basic descriptive statistics formulas and go from there. Descriptive Statistics Formulas The Mean One very important GMAT […]

## Can You Use a Calculator on the GMAT?

Can you use a calculator on the GMAT? Yes and no. You can’t bring your own calculator to the exam, and no calculator is allowed on the GMAT Quantitative section. (This is where most students feel like they need a calculator.) However, an onscreen calculator is provided for the Integrated Reasoning section, which disappears after […]

## GMAT Data Sufficiency Logic: Tautological Statements

First, here are four DS practice problems: 2) In the diagram above, the circle has its center at point O. Line BC touches the circle at point C, and the distance from B to C is 35 cm. What is the area of the circle? Statement #1: AB = 25 cm Statement #2: angle OCB […]

## GMAT Data Sufficiency Geometry Practice Questions

Here’s a set of 10 practice DS questions about Geometry.