The mistake I was making is the "Add to home screen" button only exists in the Google DRIVE app. I was trying to add a document directly from Google DOCS/SHEETS app. If you are currently using Google SHEETS, Google DOCS, or Google SLIDES this button will not exist. You must exit that app and go to Google DRIVE (every android should have it downloaded) and from there hold down the file you want to add the the home screen the drop down and "add to home screen" button will appear.