Q: What is 89 minus 58? A: 
Q: What is 40 minus 10? A: 
Q: What is 89 minus 58? A: 
Q: What is 89 minus 50? A: 
Q: What is 89 minus 58? A: 
Q: What is 89 minus 28? A: 
Q: What is 90 minus 59? A: 
Q: What is 89 minus 58? A: 