Powers and Roots Articles
Know the GMAT Code: Working Backwards - Part 2
Last time, I asked whether you know how—and when—to Work Backwards on Problem Solving (PS) problems. If you haven’t already worked through part 1 of this series, go do that [...]
Know the GMAT Code: Working Backwards
Do you know how to Work Backwards on Problem Solving (PS) problems? More important, do you know when to work backwards—and when not to? To get a really high score [...]
Know the GMAT Code: Quadratics
You’ve studied the math, but how well do you know how to decipher unusual math clues that the test writers hide in GMAT problems? To get a really high score [...]
Know the GMAT Code: Exponents
How well do you know how to decipher the key clues that the test writers hide in GMAT problems? To get a really high score on this test, you’ve got [...]
GMAT Data Sufficiency: Follow Your Process - Part 1
Data Sufficiency problems are fantastic because you can avoid doing lots of math calculations! Data Sufficiency problems are really annoying because they’re so tricky; it’s very easy to fall into [...]
GMAT Prep Challenge: Can You Do This Math Problem?
No introduction to this one—see what you can figure out and then we’ll talk about it! This is a GMATPrep® problem from the free exams. * “If n and y are [...]
How Fast Can You Solve this GMAT Prep Quant Problem?
Try this problem from the free problem sets that come with the GMATPrep® software and see whether you can spot the most efficient solution. Here is the problem: * “If a [...]
Memorize This and Pick Up 2 or 3 Quant Questions on the Test!
Memorize what? I’m not going to tell you yet. Try this problem from the GMATPrep® free practice tests first and see whether you can spot the most efficient solution. * “If [...]
Square Roots
Have you ever gotten a GMAT question wrong because you thought you were supposed to take a square root and get two different numbers but the answer key said only [...]
Patterns in Exponent Problems
Today we’re going to tackle a couple of tough exponent problems from GMATPrep®. The two problems I’ve chosen share some interesting characteristics. Here’s your first one; set your timer for 2 [...]
Manhattan GMAT Challenge Problem of the Week - 28 Sept 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 14 Sept 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 16 Aug 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 9 Aug 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 2 Aug 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 12 July 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Manhattan GMAT Challenge Problem of the Week - 21 June 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people that enter our challenge, the better the prizes! [...]
Breaking Down A GMATPrep Exponents Problem
This week’s problem emphasizes the importance of recognizing common ways to manipulate exponent expressions efficiently and accurately. I won’t say any more until after you’ve tried this GMATPrep® problem for [...]
Manhattan GMAT Challenge Problem of the Week – 21 Feb 2011
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people enter our challenge, the better the prizes! Question [...]
Grockit GMAT and MBA Admissions Course: Lesson 4, Part 4 – Quant Number Properties and Operations
We’re making sections of Grockit’s GMAT Course available to stream online for free! The course is taught by Grockit Founder Farb Nivi and covers the entire GMAT curriculum in 16 [...]
Breaking Down a GMATPrep Exponential Equations Problem
This week, we’re going to tackle a harder GMATPrep® problem solving question from the topic of Exponential Equations (a subset of Algebra). Let’s start with the problem. Set your timer for [...]
Manhattan GMAT Challenge Problem of the Week – 9 Nov 2010
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people enter our challenge, the better the prizes. Question [...]
Breaking Down a GMATPrep Inequalities Problem
This week, we’re going to tackle a pretty nasty GMATPrep® problem solving question from the topic of Inequalities. Let’s start with the problem. Set your timer for 2 minutes…. and… GO! [...]
Manhattan GMAT Challenge Problem of the Week – 19 Oct 2010
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people enter our challenge, the better the prizes. Which [...]
Manhattan GMAT Challenge Problem of the Week – 13 Oct 2010
Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown . The more people enter our challenge, the better the prizes. If [...]