The difference between 87 and 64 is: 
The difference between 42 and 26 is: 
The difference between 86 and 64 is: 
The difference between 87 and 60 is: 
The difference between 77 and 64 is: 
The difference between 87 and 74 is: 
The difference between 90 and 67 is: 
The difference between 87 and 64 is: 