If you knew anything about math you would know that multiplication and division as well as addition & subtraction are the same thing therefore neither can have precedent over the other.
say I want to divid by two
but if I was doing it inside an equation like so by your rules I could jump a step up and just multiply by 1/2
4*(1/2) = 2
same goes for
4-2 = 2
4+(-2) = 2
why don't you check out the second paragraph there chief.
Thank you for playing.