The difference between 63 and 40 is: 
The difference between 94 and 59 is: 
The difference between 67 and 40 is: 
The difference between 63 and 41 is: 
The difference between 63 and 40 is: 
The difference between 63 and 40 is: 
The difference between 70 and 47 is: 
The difference between 63 and 40 is: 