The "Getting Started On Quant" Starter KitA few weeks ago I compiled a bunch of free videos into one place as place you could point as a solid starting point (and then some) for a studier trying to crack into GMAT Verbal. I'm going to do the same thing for Quant, here.
I think the resources below cover a *huge* amount of valuable ideas regarding GMAT Quant. I do recommend picking up our "All the Quant" manual, as well, but a lot of what you need to ge a 700 on the GMAT can be found here.
As I did on the Verbal thread, I recommend, before you dive into this, watching the '24 things every GMAT studier needs to know' video in my signature, and reading
this post regarding how one improve on the test, generally.
First, a few general study tips:
1). Study with a clock and get used to answering in GMAT pace, but once you've answered, put the clock away and work for as long as you want. Try different approaches, wrestle with the thing, spend as much time as you want--but get used to choosing a letter in time.
2). When you've chosen a letter, don't think you immediately need to check the explanation. In fact, maximize the time you spend thinking and wrestling before going to the explanations.
3). Once you go to an explanation, you should *never* read the whole thing in one sitting. You should read until the explanation mentions something you had not considered. At that point stop, go back to the problem, understand how the writer got to that point, then see how much further you can go. Go the explanation for the next hint if you need to.
Here's a good video on reviewing problems in general, and the age old wisdom of Error Logging:
Also, a note on second-level learning.Know first that you can take our Foundations of Math Course for no charge. And if you can't make the actual course, you can get access to a course recording for free, along with the Foundations of Math syllabus. I think this is a great course, even for more advanced students. We really break down the most basic quant concepts you'll need for the GMAT and talk about them with a GMAT mindset. That is, we learn to think about Quant in a way the GMAT rewards.
Okay, so let's dig into quant-specific stuff.
First, some high level videos:
Data Sufficiency Overview: Reading: What Does 'Insufficient' Really Mean?Data Sufficiency Traps and PatternsTips for Data Sufficiency: Testing CasesTesting Cases: The method and a flowchartNOTE: Testing Cases is one of the most important weapons in your arsenal for quant. Come to back to these again and again and again as you study. This logic needs to be deeply understood and the process basically automated.
Pre-thinking and Rephrasing for Data-SufficiencyNote: You can (and should) 'pre-think' for PS questions as well:
The First Thirty SecondsFirst-Quarter ClutchUnderstand, Plan, Solve Inference Chains in Problem SolvingThe Problem-Solving Toolkit(NOTE: Students grossly over-emphasize algebra. It's just one of many tools you have.)
Working BackwardsPicking Smart Numbers and Testing Cases in Problem SolvingEstimationThe above are big high level, strategy and study-tactics videos. Now let's lay out some specific topic resources for you:
All About PercentsFDPRsMore FDPRsRatio StrategiesThe Power of Ratios (NEW!) (More advanced) All About Percents pt II: Percents and ProfitThe GMAT's Favorite EquationExponent WorkoutExponents RevisitedWhat Is Divisibility? Divisibility and Data Sufficiency(Advanced: The Remainder Cycle)Number Properties and Data SufficiencyThe Four Sections of the Number LineTranslating English to MathStory Problems and TranslatingGetting Familiar with FunctionsStatistics: Averages, Medians, and Sets of Numbers (NEW!)Weighted AveragesUniformly Spaced SetsQuadratic Patterns(BONUS Quadratics: Using the Difference of Squares)
Rate and Work ProblemsOverlapping Sets(ADVANCED): How to handle 3-group overlapping setsAll About Inequalities (NEW!)(Advanced) Inequalities, Absolute Values, and the Number LineGeometry: Formulas and Strategy (NEW!)Hidden Clues in QuantTwitching the GMAT: An Expert Takes the QuantSo, does this cover *everything?*
No. There are some topics that aren't here (though in time I could add them). I haven't included the free prep hours we have on probability or combinatorics, despite students *always* requesting those topics. (Note: they are really not that common, and rather difficult. I wouldn't worry about those topics until I was scoring at least a 45 on quant consistently).
Free resources for these subjects are out there, and you could also pick up the "All the Quant" manual as well. But this should be a very thorough 'GMAT Quant' kick-starter for you. I hope after watching these that you've started to understand what's *really* being tested in quant, and that you're not thinking about this as your old high-school math tests, or even like the SAT. There are some similarities, but it's in many ways a very different animal.
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REED ARNOLDManhattan Prep GMAT InstructorVideo: The 24 Things Every GMAT Studier Needs to DoHow to Improve a GMAT ScoreThe Studying Verbal Starter Kit (...That's much more than a 'starter kit')The Studying Quant Starter Kit (...That's much more than a 'starter kit')The PERFECT data sufficiency question:On a three person bench, George sits in the middle of Alice and Darryl. If Alice is married, is an unmarried person sitting next to a married person?
1). George is married.
2). Darryl is not married.
Answer: