The difference between 87 and 73 is: 
The difference between 48 and 37 is: 
The difference between 86 and 73 is: 
The difference between 87 and 76 is: 
The difference between 87 and 73 is: 
The difference between 87 and 53 is: 
The difference between 91 and 77 is: 
The difference between 87 and 73 is: 