Wow, some of you took this personally, It was a question my dh and I came up with, to see what others would do. I'm glad we have an honest bunch here. It's a shame that they are cutting back at schools.
Counting change was taught to me in 2nd grade at Catholic school. Home ec. should be teaching kids about balancing books and such. but there's too many cut backs nowadays. it is home economics after all. and no blame to those teachers either. it's the system. kids don't need to know how to 'count back change' the machine tells them how much. it's a shame. but please. this was only a hypothetical question.