The difference between 81 and 58 is: 
The difference between 60 and 26 is: 
The difference between 89 and 58 is: 
The difference between 81 and 50 is: 
The difference between 61 and 58 is: 
The difference between 81 and 58 is: 
The difference between 87 and 54 is: 
The difference between 81 and 58 is: 