The American Optometric Association suggests that children should have their first regular eye exam at six months of age. Another vision exam should take place when a child is around two or three years of age when their vision undergoes its most rapid development and vision correction is most effective.
The ISNUMBER function is a quick, easy way to check if a cell contains a number. Our example used the IF function to illustrate how ISNUMBER can be used. If you haven't used IF in a formula before, you can read our lesson on the IF function here.
I have a PC with Excel 2000 and when I select the numbers from some cells, it shows in the status bar the Count of the cells.I need to make it to show the Sum of that cells. have a PC with Excel 2000 and when I select the numbers from some cells, it shows in the status bar the Count of the cells.