Learning basic arithmetic means you just need a pencil and paper. They aren’t very expensive. They don’t yet know that their phones will have very nice calculators in them eventually. If they are worried about the cost of a couple of batteries, they need to adjust their lifestyle, maybe their housing. This budget stuff is overdone, in my opinion. How can Frank have no idea what batteries cost?
Learning basic arithmetic means you just need a pencil and paper. They aren’t very expensive. They don’t yet know that their phones will have very nice calculators in them eventually. If they are worried about the cost of a couple of batteries, they need to adjust their lifestyle, maybe their housing. This budget stuff is overdone, in my opinion. How can Frank have no idea what batteries cost?