How to make a simple pomodor timer with images?

So first of all I’m using Unreal Engine for the first time and I don’t have any experience. I wanted to make a cute pomodoro timer and I prepared the images of numbers. But I can’t do anything more because as I said I have no idea what to do. Can you tell me at least how can I give a value for these images, btw I put the images into a widget blueprint folder and added all of them in one. The thing that I want to do is giving all of them a value and writing a code about when they’re going to be visible or invisible. Sorry for my English tho :sweat_smile: