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

[toml_12953]

(12-12-2020 07:59 PM)rprosperi Wrote:  

(12-12-2020 02:11 PM)Massimo Gnerucci Wrote:  Bob, have a look at the video I linked above.

Wow, really good video, thanks for the link Massimo!

Seems one conclusion is Algebraic calculators are inconsistent and potentially confusing if you just type in an equation as given.

I'll consider sticking with RPN/RPL machines, which require some thought to use. So I can decide on PEMDAS or even PEJMDAS, based on which math teachers I'm trying to appease, but at least I can expect consistent results.

Does anyone here recall being taught PEJMDAS, even if that acronym wasn't used?

We were always taught that a missing multiplication sign should be treated the same as if the sign was there. It had no priority over regular multiplication or division.