Q: How much is 72 minus 38? A: 
Q: How much is 59 minus 42? A: 
Q: How much is 79 minus 38? A: 
Q: How much is 72 minus 31? A: 
Q: How much is 52 minus 38? A: 
Q: How much is 72 minus 68? A: 
Q: How much is 77 minus 33? A: 
Q: How much is 72 minus 38? A: 