Q: How much is 63 minus 43? A: 
Q: How much is 68 minus 18? A: 
Q: How much is 64 minus 43? A: 
Q: How much is 63 minus 42? A: 
Q: How much is 83 minus 43? A: 
Q: How much is 63 minus 23? A: 
Q: How much is 60 minus 45? A: 
Q: How much is 63 minus 43? A: 