Numbers and Operations Number of players: 3 Materials: Spinner

Stocking Up

Label the sections of a spinner "0.5," "0.75," "0.89," "0.95," "1," and "2."

Suppose your group owns $15 worth of stock in a company. This means that each group member's share is currently worth $5.

Group members take turns spinning the spinner. After each spin, multiply the number on the spinner and the amount of money the stock is worth. For example, the stock might be worth 0.89 × $15 = $13.35 after the first spin. After you have determined the new worth of your stock, divide by 3 to find out how much each group member 's share is now worth.

After the first round, each group member decides before each spin whether to continue or to "cash in" his or her stock. Of course, whenever a group member decides to quit, the value of the group's stock decreases by the value of his or her share.

Try to have the most valuable share after a maximum of twenty spins.