Q: What is the result of 91 minus 87? A: 
Q: What is the result of 38 minus 36? A: 
Q: What is the result of 99 minus 87? A: 
Q: What is the result of 91 minus 80? A: 
Q: What is the result of 91 minus 87? A: 
Q: What is the result of 91 minus 67? A: 
Q: What is the result of 99 minus 85? A: 
Q: What is the result of 91 minus 87? A: 