For doing a complete quiz

1. Sent:
   1. lower bound
   2. upper bound
   3. operation
   4. number of questions
   5. random number generator
   6. Scanner
2. Loop (number of questions time) (don't forget the parts of a loop)
   1. Ask the question and handle the answer
   2. If the answer was correct, add one to the counter of number correct
3. Return the counter of number correct