The difference between 72 and 52 is: 
The difference between 85 and 45 is: 
The difference between 76 and 52 is: 
The difference between 72 and 51 is: 
The difference between 92 and 52 is: 
The difference between 72 and 32 is: 
The difference between 71 and 54 is: 
The difference between 72 and 52 is: 