how do check to see if your caluator does order of opreations
I don't know how you would check, but by using paranpheses around certain parts of what you are typing in, it will make it do it.
Hope I helped!
type in the sequence
5 + 4 x 2 then =
if you get 13, it follows it
if you get 18, throw out your calculator and get a new one.
you might also test for the sequence of other operators.
if you have to type √9, = , to get 3 you have the latest model
if you have to type 9, √, = , to get 3 you have an earlier model.