Although we love the Slice Tool and all it does for us, it can sometimes be a bit of a pain when the slice numbers appear on our images when we don’t want them. For example when you accidentally select the Slice Tool, when you really wanted, say, the Move tool, you will notice that you have an unwanted number on your image. The good news is, it’s really easy to get rid of them.
To remove the number, choose View > Show > Slices. Voila! the slice number has disappeared. If you want it back just choose View > Show > Slices again, and there it is.