Q: What is 71 minus 22? A: 
Q: What is 74 minus 20? A: 
Q: What is 76 minus 22? A: 
Q: What is 71 minus 20? A: 
Q: What is 31 minus 22? A: 
Q: What is 71 minus 22? A: 
Q: What is 79 minus 20? A: 
Q: What is 71 minus 22? A: 