The difference between 91 and 58 is: 
The difference between 80 and 66 is: 
The difference between 99 and 58 is: 
The difference between 91 and 50 is: 
The difference between 61 and 58 is: 
The difference between 91 and 78 is: 
The difference between 96 and 53 is: 
The difference between 91 and 58 is: 