Have you ever read any of Peggy Kaye's books math games is one. I found some great games in it when I home schooled my so. And it made me realize I could take any lesson and make it into a game. When your girls need time being creative they could make generic game boards and you can get spinners and dice from other games. You can use pieces from other games to move around the board or they can make pieces or find small toys.
Make the questions straight from the lesson. You can have questions separate levels for each player or general questions if they did the same lesson.
Nothing beats a fun game.
