I'm tutoring a 6th grader in math at the moment and because she never has a ton of homework I like to give her some interesting extra problems to do. It seems she really enjoyed a problem I showed her the other day where we counted up how many ways there were of getting between two points in a city without actually counting them all up.
I think the thing she really liked about it was that we had a picture in front of us (a roadmap for a madeup town with ridiculously few roads) and could use some simple math to conclude things about it.
Are there any other visual problems like this that you guys recommend that only involve arithmetic skills (not required but if it involves fractions or decimals all the better)? Or is there a website or book that has several of these types of problems? Thanks in advance!