The difference between 84 and 61 is: 
The difference between 72 and 25 is: 
The difference between 86 and 61 is: 
The difference between 84 and 63 is: 
The difference between 74 and 61 is: 
The difference between 84 and 71 is: 
The difference between 90 and 67 is: 
The difference between 84 and 61 is: 