20 div 5 mul 4 4 mul 4 16 1 is incorrect. pemdas-ers in the replies don't understand pemdashttps://twitter.com/Fetusberry/status/1218811265675493376 …
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i would probably not pick 1 but some people were taught that 1 is what you do it has to do with the priority you treat the implicit multiplication
Huh. I didn't realize that folks were taught that multiplication from parens had different operator precedence. TIL
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