The difference between 73 and 51 is: 
The difference between 68 and 52 is: 
The difference between 76 and 51 is: 
The difference between 73 and 50 is: 
The difference between 83 and 51 is: 
The difference between 73 and 31 is: 
The difference between 80 and 58 is: 
The difference between 73 and 51 is: 