Interest rate starter

Useful starter for AS students or plenary at GCSE. The numbers of all been shaded out and need to be revealed as necessary Ask for 6 volunteers to play interest rates deal or no deal. Reveal their role and then allow them to choose between one of the five numbers as their 'box.' Then they must pick three other numbers before the bankers offer is revealed. They can choose to deal, open their box or swap boxes and open the final box. You can always leave off the banker column and ask another student to play this role once the three boxes are open (informing them what is in the final box)