Please terminate this child ASAP before something more serious happens. I know you mean well but it's at your daughters/other childrens expense and that's not fair to them. Realistically you can't always keep an eye on him and if you did that would take your attention away from all the other children.
This kid bit your daughter, took a chunk out of her cheek and attempted to slap her not once but multiple times, why are you questioning terminating? The answer is obvious!
The poster above is correct. If a parent calls CAS and they figure out this child had a history of violent behaviors they will question your judgment as a provider and a parent and that is something you do not want! Trust me I have seen it happen to a local provider and it was heart breaking.
I am not trying to come across as rude but please terminate this child!