Q: What is 66 minus 65? A: 
Q: What is 58 minus 51? A: 
Q: What is 66 minus 65? A: 
Q: What is 66 minus 64? A: 
Q: What is 86 minus 65? A: 
Q: What is 66 minus 55? A: 
Q: What is 70 minus 69? A: 
Q: What is 66 minus 65? A: 