Seconded, and actually all the "We want to know" games had a lot of success with my kids. They loved the games, and they're really games first for them. I guess

Seconded, and actually all the "We want to know" games had a lot of success with my kids. They loved the games, and they're really games first for them. I guess they'll only realize the math content in a few years ;) Personally I'm most impressed with "Elements" [1], for geometry (from Euclid of course). I find the way they gamified geometry problems really impressive. It's very intuitive, and worked wonder even before the recommended age with both my kids. Even if you don't have kids yet, I would recommend to anyone interested in serious games to spend the ~5 bucks it costs and have a look at it. [1] https://play.google.com/store/apps/details?id=com.wewanttoknow.Euclid https://play.google.com/store/apps/details?id=com.wewanttokn...