Hi There! We just released a fun math game on google play called Funtabulator for ages 8 and above. Here is the link to the game. https://play.google.com/store/apps/details?id=com.KreativePulp.Funtabulator If you want to spend your free time productively then challenge yourself or your child with many levels of fun calculating. Funtabulator puts the "fun" in tabulating. Do check it out and give us your feedback.