How do I get an App back on my home screen that I can still open in the App Store?

I deleted an app from my home screen as I wasn't using it. I decided I wanted to use it again so went into the App Store Purchased section. The app has Open next to it, and it does open that way, but I'm unable to get the icon back on my home screen. We've looked online and attempted to answer it that way but haven't seen the specific issue I'm having (so the suggestion regarding the cloud doesn't work).