Q: How much is 99 minus 96? A: 
Q: How much is 64 minus 42? A: 
Q: How much is 98 minus 96? A: 
Q: How much is 99 minus 91? A: 
Q: How much is 99 minus 96? A: 
Q: How much is 99 minus 16? A: 
Q: How much is 102 minus 99? A: 
Q: How much is 99 minus 96? A: 