Q: How much is 28 minus 24? A: 
Q: How much is 84 minus 33? A: 
Q: How much is 28 minus 24? A: 
Q: How much is 28 minus 21? A: 
Q: How much is 48 minus 24? A: 
Q: How much is 28 minus 14? A: 
Q: How much is 30 minus 26? A: 
Q: How much is 28 minus 24? A: 