This is an adaptation of the addition BUMP game. This game is designed for students to work in partnerships. Students take turns rolling two dice and finding the difference. Each player has a set of 7 place markers. The player covers the answer with his/her colored place marker. Players take turns rolling and finding the difference. If the opponent is covering the answer with his/her place marker, the player may "bump it" off and cover it up with his/her marker. Play continues until a single player is covering all of the numbers with his/her place markers.