Some examples here for Excel 2007: http://blog.meteorit.co.uk/2007/10/02/excel-2007-bug-shows-wrong-answers-to-simple-multiplications/ http://blog.meteorit.co.

Some examples here for Excel 2007: http://blog.meteorit.co.uk/2007/10/02/excel-2007-bug-shows-wrong-answers-to-simple-multiplications/ http://blog.meteorit.co.uk/2007/10/02/excel-2007-bug-shows-w... one example from the post: 425 * 154.2 was displayed as 100,000 and treated as 100000 for some calculations but not others. I remember older versions of Excel having similar (but not exactly the same) problems in basic mathematical operations too, but can't remember exactly what they were.