The difference between 49 and 35 is: 
The difference between 81 and 32 is: 
The difference between 49 and 35 is: 
The difference between 49 and 31 is: 
The difference between 59 and 35 is: 
The difference between 49 and 15 is: 
The difference between 50 and 36 is: 
The difference between 49 and 35 is: 