Q: What is 71 minus 29? A: 
Q: What is 72 minus 13? A: 
Q: What is 79 minus 29? A: 
Q: What is 71 minus 20? A: 
Q: What is 91 minus 29? A: 
Q: What is 71 minus 29? A: 
Q: What is 73 minus 21? A: 
Q: What is 71 minus 29? A: 