Q: How much is 68 minus 46? A: 
Q: How much is 65 minus 40? A: 
Q: How much is 69 minus 46? A: 
Q: How much is 68 minus 40? A: 
Q: How much is 78 minus 46? A: 
Q: How much is 68 minus 26? A: 
Q: How much is 70 minus 48? A: 
Q: How much is 68 minus 46? A: 