Professor Dave Explains
Professor Dave Explains
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Order of Arithmetic Operations: PEMDAS

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August 19, 2017

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Sometimes there are expressions that contain a number of different arithmetic operations. But how do we evaluate these? Left to right? Right to left? Does it matter? Someone make a decision! Well, someone did, and we have a strict algorithm that tells us the order in which we evaluate arithmetic expressions. It's an acronym, and acronyms are fun, so this will be fun!

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