The difference between 67 and 49 is: 
The difference between 92 and 81 is: 
The difference between 69 and 49 is: 
The difference between 67 and 41 is: 
The difference between 57 and 49 is: 
The difference between 67 and 29 is: 
The difference between 69 and 41 is: 
The difference between 67 and 49 is: 