This activity contains spinner, number cards and 15 game cards. It can be played with 3 to 15 students. Each player gets a game card. Teacher or students flips over a number card. Number cards range from 3 to 14. Then teacher or student spins the spinner. The spinner is labeled -0, -1, -2 and -3. Student solved subtraction problem. If student has the difference on game card they cover it. Student that gets 3 in a row first wins game.