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## Main Question or Discussion Point

Is there any deep reason why math follows PEMDAS order of operations?

It seems like it's totally arbitrary to me. Like couldn't we read things right-to-left instead of left to right and couldn't we do subtraction before multiplication?

Why does it matter? Is it just a made up "rule" that math "authorities" decided on?

It seems like it's totally arbitrary to me. Like couldn't we read things right-to-left instead of left to right and couldn't we do subtraction before multiplication?

Why does it matter? Is it just a made up "rule" that math "authorities" decided on?