How to Work on PEMDAS in Pre-Algebra

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PEMDAS is the order of operations and is very important for any beginning algebra student. Work on PEMDAS in pre-algebra with help from an experienced mathematics professional in this free video clip.

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Hi, I'm Drew Moyer, and this is how to work on PEMDAS in pre-algebra. PEMDAS is the order of operations, and it's very important for any beginning algebra student. It can vastly affect your answers. And what it stands for is parenthesis, exponents, multiplication and division, and addition and subtraction. So here we have our problem, which is five plus two times six, parenthesis, nine minus seven squared, minus three plus 18, divided by three squared minus one. So the first step would be to simplify everything within parenthesis, and you can see I have one step, one set right here, which is nine minus seven. So on the next line I'm gonna simplify that. I'm gonna do five plus two times six, parenthesis two squared, minus three plus 18 divided by three squared minus one. And now that I have everything within parenthesis simplified, I can move onto the next step which is exponents. And you can see I have two right here, I have a two squared and a three squared, so my next line I'm gonna take care of those. Five plus two times six quantity four minus three plus 18 divided by nine minus one. And now the next step is multiplication and division, which can be done in any order. So I'm gonna take care of those in this step. I've got five plus two times 24, minus three plus 18 divided by nine, which I'll take care of on the next step. And right here I've got a two times 24, five plus 48 minus three plus two minus one. So once I'm done with that, you can see I'm left with only addition and subtraction, which I can take care of right now. Five plus 48 is 53, minus three plus two minus one, 53 minus three is 50, plus two minus one which equals 51. So again, I'm Drew Moyer, and this has been how to work on PEMDAS in pre-algebra.

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