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The Remainder Cycle

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Manhattan Prep GMAT Blog - The Remainder Cycle by Reed Arnold

Guess what? You can attend the first session of any of our online or in-person GMAT courses absolutely free—we’re not kidding! Check out our upcoming courses here.


One common complaint I hear from my students is that they ‘haven’t done math like this since high school.’ And they’re pretty much right: the concepts in the Quant section are by and large wrapped up by Algebra II. But for some subjects, my students drastically underestimate how long it has been since they’ve thought about them. One such subject: remainders on the GMAT. Read more

Advanced Error Log: Tie Your Hands Behind Your Back

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Manhattan Prep GMAT Blog - Advanced Error Log: Tie Your Hands Behind Your Back by Reed Arnold

Guess what? You can attend the first session of any of our online or in-person GMAT courses absolutely free—we’re not kidding! Check out our upcoming courses here.


It’s been said that “a mistake is only a mistake if you don’t learn from it,” which probably explains the shambles of my dating life. Read more

Tiny GMAT Critical Reasoning Mistakes You Might be Making (Part 2)

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Manhattan Prep GMAT Blog - Tiny GMAT Critical Reasoning Mistakes You Might be Making (Part 2) by Reed Arnold

Guess what? You can attend the first session of any of our online or in-person GMAT courses absolutely free—we’re not kidding! Check out our upcoming courses here.


As Hemingway did for lions on the Savannah, I have continued my hunt in GMAT Critical Reasoning problems for little mistakes in logic, the tiny tempting answer choices that could trap even the most rational of minds. I have also been consuming as much whiskey as he would have, so plese forgive any typps cos Im perty drnk rite now… Read more

The GMAT Testing Cases Process: Specified, Demystified, & Put into a Flowchart

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Manhattan Prep GMAT Blog - The GMAT Testing Cases Process: Specified, Demystified, & Put into a Flowchart by Reed Arnold

Did you know that you can attend the first session of any of our online or in-person GMAT courses absolutely free? We’re not kidding! Check out our upcoming courses here.


It’s become a bit of a running joke in my classes that I say, “The GMAT is a game of [a thing].” Every time I say it, I make it sound like I’ve revealed the hidden key to GMAT mastery: Read more

GMAT Sentence Correction: Modifiers and Meaning

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Manhattan Prep GMAT Blog - GMAT Sentence Correction: Modifiers and Meaning by Reed Arnold

Guess what? You can attend the first session of any of our online or in-person GMAT courses absolutely free—we’re not kidding! Check out our upcoming courses here.


Meaning. Important in life, important in GMAT Sentence Correction questions.

I realized recently just how much the GMAT loves switching between verbs and modifiers derived from verbs (we nerds know these as ‘participles’) in SC. For example: Read more

Tiny GMAT Critical Reasoning Mistakes You Might be Making (Part 1)

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Manhattan Prep GMAT Blog - Tiny GMAT Critical Reasoning Mistakes You Might be Making (Part 1) by Reed ArnoldGuess what? You can attend the first session of any of our online or in-person GMAT courses absolutely free—we’re not kidding! Check out our upcoming courses here.


Critical Reasoning. It’s not the easiest subject to teach, I tell ya. Or to study. On the one hand, it’s deceptively simple: ‘here are four sentences, answer a question about them.’ You might be glad there are no formulas, no little rules to memorize. Unlike geometry, in which you might not see a 5-12-13 triangle on the actual test but need to know about them just in case, GMAT Critical Reasoning is usually just a game of spotting a few parts of an argument and answering the question logically.

But while there are certain things that show up again and again—premise, conclusion, counterpoints, assumptions—there are a lot of different ways the GMAT can construct the logic, and a lot of different ways they can make wrong answers seem tempting. How many times have you been wrong but the answer just felt so right? Read more

How to Handle 3-Group Overlapping Sets on the GMAT

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Manhattan Prep GMAT Blog - How to Handle 3-Group Overlapping Sets on the GMAT by Reed Arnold

Did you know that you can attend the first session of any of our online or in-person GMAT courses absolutely free? We’re not kidding! Check out our upcoming courses here.


Most overlapping sets on the GMAT have two distinct groups. Students take French and/or Spanish (or neither), pianists play either classical and/or jazz (or neither), people like either QDoba and/or Baja Fresh (definitely neither. Chipotle, please)—and for these situations, the familiar, double-set matrix approach works best. Read more

Why You Should Be Redoing GMAT Problems

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Manhattan Prep GMAT Blog - Why You Should be Redoing GMAT Problems by Reed Arnold

Did you know that you can attend the first session of any of our online or in-person GMAT courses absolutely free? We’re not kidding! Check out our upcoming courses here.


I was tutoring a student recently when I had a horrifying epiphany, not unlike the one Hank had in Breaking Bad when… Is it too soon to spoil the show? Have you not watched that show? I mean, I guess spend time studying for the GMAT if your future is really that important to you, but the whole series is on Netflix, y’know, so maybe your future isn’t even worth it.

Kidding, of course it is. Great show, though. Read more

The Knowledge Trove that Is a GMAT Ratio

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Manhattan Prep GMAT Blog - The Knowledge Trove that Is a GMAT Ratio by Reed Arnold

Did you know that you can attend the first session of any of our online or in-person GMAT courses absolutely free? We’re not kidding! Check out our upcoming courses here.


‘Ratios?’ You might be thinking. ‘Those are easy. Pretty sure I get those.’

Wait. Let’s pretend I am the eccentric owner of a pet store, and I sell only two types of pets: rabid donkeys and three-legged mountain lions. In my store the ratio of donkeys to lions is 3:7. What do you know?

‘….That for every 3 donkeys you have 7 lions. Thanks for all the information, weird guy, should I get an external hard-drive so I can back all that up?’

Okay, drop the sarcasm, reader of my invention. When the GMAT gives you a ratio, it actually contains a boatload of information. Take a second and brainstorm what else you can figure out about this pet store. Anything at all.
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