Posted by Beau on Sunday, November 27, 2011 at 7:06pm.
No one knows who invented the order of operations.
These web sites will help you.
http://mathforum.org/library/drmath/view/52582.html
http://en.wikipedia.org/wiki/Order_of_operations
11y=88
The Order of Operations rules in mathematics were not invented by one single person. They have been developed over the last few centuries.
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