The 6th grade students participated in a card game called “25” last week to practice their understanding of adding and subtracting integers. The object of the game is to use the value of the playing cards to reach 25. In this game, the red cards represent negative numbers, and the black cards represent positive numbers. Students played in pairs for a couple rounds and then played as a large group of 6 on the first day. On the second day, they used all four basic operations to reach a goal of 100.