Q: How much is 14 minus 13? A: 
Q: How much is 82 minus 70? A: 
Q: How much is 17 minus 13? A: 
Q: How much is 14 minus 10? A: 
Q: How much is 94 minus 13? A: 
Q: How much is 14 minus 13? A: 
Q: How much is 20 minus 19? A: 
Q: How much is 14 minus 13? A: 