1. When you add, subtract, or multiply two integers, is the result always
an integer? Why?
2. When you divide two integers, is the quotient always an integer? Why?
3. In example number 5, what are your quotients? When do you usually
have these kinds of quotient?
4. If 9 is divided by 5, is the quotient a rational number? Why?
5. How do you define a rational number?​