The difference between 84 and 70 is: 
The difference between 94 and 13 is: 
The difference between 87 and 70 is: 
The difference between 84 and 71 is: 
The difference between 94 and 70 is: 
The difference between 84 and 20 is: 
The difference between 93 and 79 is: 
The difference between 84 and 70 is: 