The difference between 99 and 36 is: 
The difference between 60 and 45 is: 
The difference between 99 and 36 is: 
The difference between 99 and 35 is: 
The difference between 69 and 36 is: 
The difference between 99 and 76 is: 
The difference between 102 and 39 is: 
The difference between 99 and 36 is: 