The best way to do this is by taking advantage of the strikethrough keyboard shortcut in Google Docs. If you would prefer to use a keyboard shortcut, then you can simply select the text, then press Alt + Shift + 5 on your keyboard. If you would like a step-by-step guide on how to do this, then continue below. Step 1: Use your mouse to highlight the text that you wish to strikethrough. Step 2: Press the following keys simultaneously – Alt + Shift + 5. read more