The difference between 64 and 43 is: 
The difference between 70 and 40 is: 
The difference between 68 and 43 is: 
The difference between 64 and 41 is: 
The difference between 64 and 43 is: 
The difference between 64 and 43 is: 
The difference between 70 and 49 is: 
The difference between 64 and 43 is: 