I am working on creating a grade book for my school and the problem that I am
having is when I get across to the end of a column where I have this command
average(c8:av8) when I have no numerical entries I get a #DIV/0! error. After
reading through many different forums on hiding such numerous errors I still
can't figure out how to hide more than one at a time without them reappearing
once the first error has changed.