These codes require you to hold down the Alt key and type a series of numbers on the numpad. The degree symbol code is Alt + 0176. As soon as you let go of the Alt key, the symbol should appear.

The em dash keyboard shortcut differs depending on if you're using a Mac or PC. On a PC, you can use an Emoji keyboard or type the "Alt Code," Alt + 0151. On a Mac, you simply need to use the ...