I get the same result in 2010

Excel is well known for glitchy results like this - google it and you will find many such gotchas, some dating back to the original version. As you note some of them are display only problems with the actual result being correct:-

http://www.cinemablend.com/technology/Microsoft-Excel-2007-Gets-Buggy-6546.html

But basically precision numbers are clearly risky business in some areas of excel - now if only someone could say exactly which areas!

Excel is well known for glitchy results like this - google it and you will find many such gotchas, some dating back to the original version. As you note some of them are display only problems with the actual result being correct:-

http://www.cinemablend.com

But basically precision numbers are clearly risky business in some areas of excel - now if only someone could say exactly which areas!