Q: What is 73 minus 12? A: 
Q: What is 78 minus 48? A: 
Q: What is 77 minus 12? A: 
Q: What is 73 minus 10? A: 
Q: What is 63 minus 12? A: 
Q: What is 73 minus 22? A: 
Q: What is 80 minus 19? A: 
Q: What is 73 minus 12? A: 