There are a few different ways that you can hide columns in Google Sheets. One way is to simply select the column that you want to hide and then press the "hide" button in the toolbar. Another way is to use the "hide column" function under the "format" menu. This will allow you to hide the column without having to select it. You can also use the "hide" function in the toolbar to hide all of the columns except for the one that you want to see.