Q: What is 89 minus 28? A: 
Q: What is 73 minus 49? A: 
Q: What is 89 minus 28? A: 
Q: What is 89 minus 28? A: 
Q: What is 49 minus 28? A: 
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Q: What is 90 minus 29? A: 
Q: What is 89 minus 28? A: 