The difference between 67 and 64 is: 
The difference between 88 and 30 is: 
The difference between 67 and 64 is: 
The difference between 67 and 62 is: 
The difference between 87 and 64 is: 
The difference between 67 and 34 is: 
The difference between 71 and 68 is: 
The difference between 67 and 64 is: 