Q: How much is 79 minus 63? A: 
Q: How much is 93 minus 42? A: 
Q: How much is 76 minus 63? A: 
Q: How much is 79 minus 67? A: 
Q: How much is 79 minus 63? A: 
Q: How much is 79 minus 13? A: 
Q: How much is 84 minus 68? A: 
Q: How much is 79 minus 63? A: 