I agree, and the level of user on G+ was of a techy IT variety of person. It was great and you could have good conversations. Lemmy really has that feel now. Enjoy it till either the general public gets hold of it and it turns into a cesspool or it slowly dies a death.
Personally I hope to face neither of those scenarios, but history is not on our side.
The one I learnt at the dawn of time was BODMAS.
bracket of Division Multiplication Addition Subtraction.
I learnt this in the 70’s early 80’s in South Africa, so not sure if things have changed.