The difference between 87 and 39 is: 
The difference between 94 and 88 is: 
The difference between 89 and 39 is: 
The difference between 87 and 30 is: 
The difference between 47 and 39 is: 
The difference between 87 and 69 is: 
The difference between 89 and 31 is: 
The difference between 87 and 39 is: 