The difference between 62 and 30 is: 
The difference between 69 and 35 is: 
The difference between 64 and 30 is: 
The difference between 62 and 31 is: 
The difference between 42 and 30 is: 
The difference between 62 and 20 is: 
The difference between 70 and 38 is: 
The difference between 62 and 30 is: 