Q: How much is 88 minus 28? A: 
Q: How much is 20 minus 10? A: 
Q: How much is 89 minus 28? A: 
Q: How much is 88 minus 20? A: 
Q: How much is 68 minus 28? A: 
Q: How much is 88 minus 28? A: 
Q: How much is 85 minus 28? A: 
Q: How much is 88 minus 28? A: 