The difference between 64 and 54 is: 
The difference between 86 and 29 is: 
The difference between 67 and 54 is: 
The difference between 64 and 52 is: 
The difference between 74 and 54 is: 
The difference between 64 and 44 is: 
The difference between 61 and 53 is: 
The difference between 64 and 54 is: 