The difference between 73 and 58 is: 
The difference between 99 and 62 is: 
The difference between 79 and 58 is: 
The difference between 73 and 51 is: 
The difference between 63 and 58 is: 
The difference between 73 and 18 is: 
The difference between 78 and 53 is: 
The difference between 73 and 58 is: 