TI-36X Pro, 30X Pro, and PEDMAS

[EdS2]

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This isn't answering your question, but I remember no kind of mnemonic from my days at school in the UK. I had no difficulty with arithmetic (or maths in general) - in some way or another, it was just made clear how to proceed. (Of course, one would not be challenged with ambiguous presentations, as one now sees in viral social media posts.)

Later, in undergraduate mathematics, I came across the idea of a Well Formed Formula, which encapsulates the idea that it's only worthwhile to deal with things which make sense. (Much much earlier, before I could read, I had the idea that any sequence of letters would form a word. It wasn't difficult or traumatic to be corrected!)

I did find this on the internet:

Quote:BODMAS, BIDMAS and PEMDAS are correct and used in different areas of the world. BODMAS and BIDMAS is common in the UK while PEMDAS is used in the US. BODMAS stands for Brackets, Order, Division, Multiplication, Addition, Subtraction.

Edit: you refer to your previous post, but I've been unable to find which one you might mean.