Q: How much is 42 minus 41? A: 
Q: How much is 70 minus 47? A: 
Q: How much is 49 minus 41? A: 
Q: How much is 42 minus 40? A: 
Q: How much is 92 minus 41? A: 
Q: How much is 42 minus 31? A: 
Q: How much is 50 minus 49? A: 
Q: How much is 42 minus 41? A: 