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Building quick math skills valuable?

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Building quick math skills valuable? [#permalink]

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New post 30 Jan 2018, 05:22
I'm about 3 months away from my GMAT and my quant is now consistently between 35-40, whereas prior, during the time of my diagnostic, I was at sub 20! Yikes.

I've done about a month of review using Magoosh. I'm now wondering if it's worth it to start reading books like "Mental Math: Tricks to Become a Human Calculator" by Abhishek VR to increase my mental maths.

Not sure if this will take away energy I could just devote to doing questions. Thoughts?
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Building quick math skills valuable? [#permalink]

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New post 31 Jan 2018, 23:47
Hi!

The GMAT is not a math test. Nor is it a grammar test. Sure, you have to know something (well, a lot of things!) about these topics in order to get a good score. But this test is really testing your executive reasoning skills: https://www.manhattanprep.com/gmat/blog ... lly-tests/

Probably the best strategy to increase your score is to practice as much official questions as possible. If you're out of official questions, gmatclub tests and manhattan prep tests are also great for practice.

Another useful link: https://gmatclub.com/forum/all-you-need ... 40445.html

Hope this helps!
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Re: Building quick math skills valuable? [#permalink]

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New post 04 Feb 2018, 13:25
deloitter wrote:
I'm about 3 months away from my GMAT and my quant is now consistently between 35-40, whereas prior, during the time of my diagnostic, I was at sub 20! Yikes.

I've done about a month of review using Magoosh. I'm now wondering if it's worth it to start reading books like "Mental Math: Tricks to Become a Human Calculator" by Abhishek VR to increase my mental maths.

Not sure if this will take away energy I could just devote to doing questions. Thoughts?


You don't need mental math, per se. Writing stuff down isn't bad and doesn't take too much time. It's also good to write down your work because it makes you more likely to catch mistakes as you make them. Mental math books or sites focus more on things that are effectively party tricks. Nobody's watching you perform while you take the GMAT, though.

On the other hand, learning to do arithmetic more quickly is very useful on the GMAT. Things like multiplying multi-digit numbers on paper (don't go overboard, but you should be able to multiply two-digit numbers very quickly, for instance.) Practicing arithmetic will help you get through problems more quickly, which will give you more 'breathing room' to consider your approach and double check your work.

In short: I wouldn't bother with that book, but I would recommend using a site like Khan Academy (or just googling 'middle school math drills') to practice your arithmetic speed.
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Re: Building quick math skills valuable?   [#permalink] 04 Feb 2018, 13:25
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