Tim buys 3 loaves of bread.  Each loaf of bread has 20 slices.  He pays for the 3 loaves of bread with 2 $20 bills.  He gets $16 change.  How much does each slice cost, in cents?
He gave 2*20=$<T>multiply(2, 20)=40
So the total cost was 40-16=$<T>subtract(40, 16)=24
That means each slice costs 24/3=$<T>divide(24, 3)=8.0
That means it costs 8*100=<T>multiply(8, 100)=800 cents.
So each slice is 800/20=<T>divide(800, 20)=40.0 cents.
