Q: How much is 51 minus 47? A: 
Q: How much is 80 minus 75? A: 
Q: How much is 58 minus 47? A: 
Q: How much is 51 minus 40? A: 
Q: How much is 91 minus 47? A: 
Q: How much is 51 minus 27? A: 
Q: How much is 56 minus 42? A: 
Q: How much is 51 minus 47? A: 