The difference between 78 and 15 is: 
The difference between 58 and 26 is: 
The difference between 76 and 15 is: 
The difference between 78 and 15 is: 
The difference between 88 and 15 is: 
The difference between 78 and 25 is: 
The difference between 81 and 18 is: 
The difference between 78 and 15 is: 