What makes non-PEMDAS answers invalid?
It seems to me that even the non-PEMDAS answer to an equation is logical since it fits together either way. If someone could show a non-PEMDAS answer being mathematically invalid then I’d appreciate it.
My teachers never really explained why, they just told us “This is how you do it” and never elaborated.
In: 834
PEMDAS is like grammer for math. It’s not intrisicly right or wrong, but a set of rules for how to comunicate in a language. If everyone used different grammer maths would mean different things
Example
2*2+2
PEMDAS tells us to multiply then do addition 2*2+2 = 4+2 = 6
If you used your own order of operations SADMEP you would get 2*2+2 = 2*4 = 8
So we need to agree on a way to do the math to get the same results
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