Q: What is 52 minus 40? A: 
Q: What is 79 minus 39? A: 
Q: What is 53 minus 40? A: 
Q: What is 52 minus 41? A: 
Q: What is 72 minus 40? A: 
Q: What is 52 minus 40? A: 
Q: What is 60 minus 48? A: 
Q: What is 52 minus 40? A: 