Irena,
DS knows Money as well, but I did have to supplement, I really want him to know it in depth.
I would be okay with DS6 doing the math Online also, he also complains his hand gets tired. It is a legit complaint as he had issues w/ his hands, not the fine motor- those are wonderful, but the gross motor... for which he rec'd OT.
I have recently been looking @Khan Academy, DS enjoys the format. Somebody somewhere complained it changes a lot, that they are becoming more aligned with CA public school system, and the common core..
