Q: What is the result of 81 minus 78? A: 
Q: What is the result of 99 minus 83? A: 
Q: What is the result of 89 minus 78? A: 
Q: What is the result of 81 minus 70? A: 
Q: What is the result of 81 minus 78? A: 
Q: What is the result of 81 minus 68? A: 
Q: What is the result of 86 minus 73? A: 
Q: What is the result of 81 minus 78? A: 