Q: What is 51 minus 16? A: 
Q: What is 92 minus 21? A: 
Q: What is 57 minus 16? A: 
Q: What is 51 minus 10? A: 
Q: What is 91 minus 16? A: 
Q: What is 51 minus 16? A: 
Q: What is 55 minus 10? A: 
Q: What is 51 minus 16? A: 