I created a multi slide project with the first slide containing both the visuals and an audio explanation of how to complete each slide. We watched this slide as a whole class at the beginning of the first lesson and then completed some of the follow up equations, again as a whole class - having the iPad airplay to the Apple TV ensured everyone could see! The rewindable nature of the "teaching" slide ensured students could go back to this during the week.
Oh, and after students master subtraction from 5, what comes next? Fish of course!