Q: What is 64 minus 62? A: 
Q: What is 94 minus 43? A: 
Q: What is 64 minus 62? A: 
Q: What is 64 minus 63? A: 
Q: What is 94 minus 62? A: 
Q: What is 64 minus 42? A: 
Q: What is 70 minus 68? A: 
Q: What is 64 minus 62? A: 