Q: What is 61 minus 10? A: 
Q: What is 79 minus 18? A: 
Q: What is 67 minus 10? A: 
Q: What is 61 minus 10? A: 
Q: What is 21 minus 10? A: 
Q: What is 61 minus 20? A: 
Q: What is 70 minus 19? A: 
Q: What is 61 minus 10? A: 