The difference between 87 and 24 is: 
The difference between 89 and 43 is: 
The difference between 87 and 24 is: 
The difference between 87 and 24 is: 
The difference between 67 and 24 is: 
The difference between 87 and 64 is: 
The difference between 91 and 28 is: 
The difference between 87 and 24 is: 