Q: How much is 57 minus 45? A: 
Q: How much is 90 minus 19? A: 
Q: How much is 59 minus 45? A: 
Q: How much is 57 minus 41? A: 
Q: How much is 57 minus 45? A: 
Q: How much is 57 minus 35? A: 
Q: How much is 60 minus 48? A: 
Q: How much is 57 minus 45? A: 