Watch More: http://www.youtube.com/ehowtech. Typing numbers with the square root symbol in Microsoft Word is something you can do through the use of the Insert tab.Type numbers with the square root symbol in Microsoft Word with help from a computer science and media production professional in this free video clip. Expert: Josiah Rea.Filmmaker: Patrick Russell.atch More: http://www.youtube.com/ehowtech. Typing numbers with the square root symbol in Microsoft Word is something you can do through the use of the Insert tab.