Q: What is 15 minus 14? A: 
Q: What is 31 minus 30? A: 
Q: What is 18 minus 14? A: 
Q: What is 15 minus 12? A: 
Q: What is 65 minus 14? A: 
Q: What is 15 minus 14? A: 
Q: What is 20 minus 19? A: 
Q: What is 15 minus 14? A: 