Teacher Reccomendations

I am applying to 5 colleges on the common app and only want to ask two teachers to fill out my recommendations. I don’t want to ask too much from them because I have 3 more schools that I am applying to outside of the common app that I want them to complete also. When I invite my teachers, do they have to fill out 5 different recommendations or do they just fill out one and it goes to each school that I am applying to?
Also, should I just ask my teachers to save the recommendations and use them for my 3 other colleges that I am applying to?