Q: What is the result of 38 minus 31? A: 
Q: What is the result of 85 minus 65? A: 
Q: What is the result of 36 minus 31? A: 
Q: What is the result of 38 minus 37? A: 
Q: What is the result of 48 minus 31? A: 
Q: What is the result of 38 minus 21? A: 
Q: What is the result of 45 minus 38? A: 
Q: What is the result of 38 minus 31? A: 