Q: What is 35 minus 18? A: 
Q: What is 25 minus 17? A: 
Q: What is 39 minus 18? A: 
Q: What is 35 minus 11? A: 
Q: What is 75 minus 18? A: 
Q: What is 35 minus 28? A: 
Q: What is 37 minus 10? A: 
Q: What is 35 minus 18? A: 