The difference between 99 and 22 is: 
The difference between 90 and 35 is: 
The difference between 93 and 22 is: 
The difference between 99 and 25 is: 
The difference between 39 and 22 is: 
The difference between 99 and 52 is: 
The difference between 102 and 25 is: 
The difference between 99 and 22 is: 