I’ve been trying to come up with a solution for my home, I have multiple reptiles and they are all managed by home assistant. i need to combine two sensors into a single value. For example I need to take sensor.reptile.1 and `sensor.reptile.2’ add them together. then divide them by 2 so i get the average of them both. is there anybody that can help me with this. I’m sure it will be much simpler to somebody else as i never use math in templates.