The difference between 70 and 45 is: 
The difference between 81 and 69 is: 
The difference between 77 and 45 is: 
The difference between 70 and 40 is: 
The difference between 80 and 45 is: 
The difference between 70 and 45 is: 
The difference between 78 and 43 is: 
The difference between 70 and 45 is: 