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# MCAT math tips

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Does anyone have good mental math tips considering we cannot use a calculator?

For example, how to calculate logs or take the square root of a number.

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As a general rule, if you find yourself having to do complicated math or huge calculations, you are either doing the question wrong or there is a much faster way to do it. This can be either conceptually or the numbers easily cancel in the equation. I wouldn't worry too much about MCAT math...just make sure you can add, divide, multiply, subtract, understand exponential, logarithmic, and power relationships.

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The math tips in the Exam Krackers book (in the verbal reasoning book) really helped me out, and I am pretty bad at math. You should check that out if you can.

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...math tips in the Exam Krackers book (in the verbal reasoning book)...

lol, it's true believe it or not

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I don't remember having to take logs of anything on the MCAT...unless it was Log of 1 or something. Square roots ..*if* there were any were probably of whole numbers (25, 81 etc.) usually you can cancel stuff out so it ends up being 100/10 or something like that.

I agree with Kuantum, if you find yourself doing something you can't calculate in your head, most likely you're doing something wrong.

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The mistakes I was making and had to be really careful about were mistakes on order of magnitude. You know, that damn decimal point in the wrong place...

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I found that the best math tip was learning when you need to use it.

There are always - as Kuantum says - conceptual methods of determining solutions. Sure, crunching numbers will get you the answer in 2 minutes but if you take a step back you might be able to figure it out in 10 seconds without even making a written calculation.

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try the mcat pearls website... use the grass roots part and its free. Tells you some tips on math for the mcat:)

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