Q: What is 81 minus 22? A: 
Q: What is 62 minus 56? A: 
Q: What is 85 minus 22? A: 
Q: What is 81 minus 20? A: 
Q: What is 81 minus 22? A: 
Q: What is 81 minus 72? A: 
Q: What is 89 minus 20? A: 
Q: What is 81 minus 22? A: 