The difference between 93 and 28 is: 
The difference between 73 and 29 is: 
The difference between 99 and 28 is: 
The difference between 93 and 20 is: 
The difference between 63 and 28 is: 
The difference between 93 and 78 is: 
The difference between 98 and 23 is: 
The difference between 93 and 28 is: 