Q: How much is 89 minus 89? A: 
Q: How much is 58 minus 51? A: 
Q: How much is 89 minus 89? A: 
Q: How much is 89 minus 87? A: 
Q: How much is 99 minus 89? A: 
Q: How much is 89 minus 19? A: 
Q: How much is 80 minus 89? A: 
Q: How much is 89 minus 89? A: 