Q: What is 77 minus 30? A: 
Q: What is 62 minus 37? A: 
Q: What is 73 minus 30? A: 
Q: What is 77 minus 35? A: 
Q: What is 67 minus 30? A: 
Q: What is 77 minus 30? A: 
Q: What is 84 minus 37? A: 
Q: What is 77 minus 30? A: 