The difference between 43 and 35 is: 
The difference between 57 and 40 is: 
The difference between 48 and 35 is: 
The difference between 43 and 31 is: 
The difference between 73 and 35 is: 
The difference between 43 and 15 is: 
The difference between 49 and 31 is: 
The difference between 43 and 35 is: 