Well the 5-2+3 has addition 2+3 and subtraction 5-2. In fact mathematically one should read from left to right when there are operators (- and +) of equal precedence (addition and subtraction have equal precedence and multiplication and division have equal precedence)
Hi EddieM, just came across your post. BODMAS is BO(DM)(AS) where DM has equal precidence, thus done left to right. Same holds for AS, done lift to right with equal precidence. But then, I suspect you already know this. PS does the M stand for Mathews?
Seeing that you like puzzles here is a tricky one for you. n + n + n .... + n (n of them) = n^2 then d/dn (n + n + n .... + n) = d/dn(n^2) 1 + 1 + ... + 1 (n of them) = 2n n = 2n 1 = 2 QED.
Apparently this puzzle is easily solved by 1st year math students, but the 3rd years have a problem spotting the mistake. ;-)