Sum Swap Addition & Subtraction Game is a fun way to practice math! It encourages basic math drills through fun game play! For 2-4 players. Ages 5+ Develop fluency in early math skills as kids play the game. It is the perfect math game for Homeschool or classroom learning Start your math adventure with a race through the swamp while facing math challenges and meeting funny swamp creatures along the way. This fun and educational math game includes gameboard, 4 swamp creature game pieces, 2 number dice, and an operation die. The game has been used but is in impeccable condition.