Order of operations - what is 6÷2(1+2) ?

[Massimo Gnerucci]

(12-11-2020 11:15 PM)toml_12953 Wrote:  

(12-11-2020 07:50 AM)Sukiari Wrote:  If it’s anything other than 1 you break centuries of established math.

If you do PEMDAS, then you get

(1+2) = 3

6/2 = 3

3*3 = 9

There is no standard that calls for the implied multiplication to be of higher priority than a multiplication sign.
Multiplication is the same priority as division and is done left to right. The division comes before the multiplication on the line and so is done before the multiplication.

So when you write x/2y what you really mean is (x*y)/2?
Luckily we have PEJMDAS!

Turns out that PEMDAS is quite a novelty and that its core fans are North American teachers...





:)