Imagine you start by choosing a black card and then choose two red cards:

Your amount	Your bet	You chose	Result
£128	£64	black	- £64
£64	£32	red	+ £32
£96	£48	red	+ £48

Keep a record of the outcome from laying down the cards in different orders.
What do you notice?

How is your total amount of money affected by a win?
How is it affected by a loss?