Q: How much is 71 minus 39? A: 
Q: How much is 72 minus 62? A: 
Q: How much is 79 minus 39? A: 
Q: How much is 71 minus 30? A: 
Q: How much is 71 minus 39? A: 
Q: How much is 71 minus 69? A: 
Q: How much is 74 minus 32? A: 
Q: How much is 71 minus 39? A: 