Q: What is 83 minus 28? A: 
Q: What is 98 minus 20? A: 
Q: What is 89 minus 28? A: 
Q: What is 83 minus 21? A: 
Q: What is 43 minus 28? A: 
Q: What is 83 minus 38? A: 
Q: What is 86 minus 21? A: 
Q: What is 83 minus 28? A: 