If you think the 'O' in BODMAS means 'of', you are wrong. See...

I'm guilty of calling the 'O' in BODMAS 'of', but now I know better. Lol...
B → B rackets first (parentheses)
O → O f (orders i.e. Powers and Square Roots, Cube Roots, etc.)
DM → D ivision and M ultiplication (start from left to right)
AS → A ddition and S ubtraction (start from left to right)