I was always taught PEMDAS and I'm 22.
Parrens, exponents, multi, div, add, sub.
PEMDAS was short for "Please Excuse My Dear Aunt Sally"
At my age I was taught using The Brackets,Other,Multiply,Divide, Add, Subtract protocol
hence 600/5*2=60
Today students are taught using The Brackets,Other,Divide, Multiply,Add, Subtract protocol
hence 600/5*2=240
When was BODMAS introduced and what was the reason for the change?
berniecole
I assummed that acording to PEMDAS multiplication had greater precedence than division and hence 600/5*2=60. However when doing a Spreadsheet calculation it is stated that multiplication and division have equeal precedence and the calcultion is read from left to right hence the confusion, 600/5*2=240. when did PEDMAS or BODMAS come into being?
I usually aviod the confusion by peppering my equations with prenthesis
Your comments would be appreciated
We were given BOMDAS as well at kiddie-school, I always wondered about the "O" which was given to us as "Of" .
It was ingrained in us that the MD were interpreted left to right and the AS bit was also interpreted in the same way, as - and + are also at equal precedence.
Later on when I went to big school we were told BEDMAS, where, indeed, the E is for exponentiation, making the mnemonic complete.
If you seriously don't want confusion, then always write judicious brackets. Alternatively, use a leftfix or rightfix (a.k.a. Polish or Reverse Polish) notation.