Each team picks a number between 1 and 100 and challenges the opposing team to create an equation with their cards to equal that number. Once the challenge is made, teams can lay their cards down and move them around to try to create an equation to equal the challenge number. Teams try to use as many cards as they can in their equation since they receive one point for each card they use. Players may add, subtract, multiply, and divide the numbers on their cards. Cards may be used only once per equation.
Teams keep the cards they use and return the others to the deck.
Deal six new cards to each team to play again. After three of four turns, teams count their cards. The team with the most points wins the game. Here are four. They are very easy to create, or better yet, to have the students create.