Q: How much is 72 minus 33? A: 
Q: How much is 99 minus 97? A: 
Q: How much is 78 minus 33? A: 
Q: How much is 72 minus 31? A: 
Q: How much is 92 minus 33? A: 
Q: How much is 72 minus 33? A: 
Q: How much is 79 minus 30? A: 
Q: How much is 72 minus 33? A: 