Q: What is 50 minus 22? A: 
Q: What is 60 minus 21? A: 
Q: What is 55 minus 22? A: 
Q: What is 50 minus 20? A: 
Q: What is 40 minus 22? A: 
Q: What is 50 minus 32? A: 
Q: What is 58 minus 20? A: 
Q: What is 50 minus 22? A: 