Q: What is 81 minus 33? A: 
Q: What is 75 minus 69? A: 
Q: What is 89 minus 33? A: 
Q: What is 81 minus 30? A: 
Q: What is 61 minus 33? A: 
Q: What is 81 minus 73? A: 
Q: What is 89 minus 31? A: 
Q: What is 81 minus 33? A: 