I have seen several people saying the order operation is
- Brackets/Parenthesis
- Orders (roots and powers)
- Divisions
- Multiplications
- Subtractions
- Additions
But I was taught it as
- Brackets/Parenthesis
- Roots and powers, left to right (independently of the exact operation)
- Divisions and multiplications, left to right (independently of the exact operation)
- Subtractions and additions, left to right (independently of the exact operation)
So, what order were you taught and/or use today?


I’ve seen this topic come up for the second time this week. i’m an engineer, so I’ve been trained to use maths as a tool extensively. But to be honest, I couldn’t even tell you. I don’t remember specific rules for it, I just do it without even thinking about it anymore.