You square a number when you multiply it by itself: 5 squared is 25, since 5 x 5 = 25. Reverse the process to find square roots. The square root of 25 is 5.

To get the square of a number in Excel, you must use this formula: =<cell coordinates of first cell>^2. In short, if you have a digit in an A1 cell and you want to find the square of that number ...