I need help with this assignment. It's explained in the following webpage. The additional activities aren't required, and skeleton code is provided: http://web.cse.ohio-state.edu/software/2221/web-sw1/assignments/projects/natural-number-calculator/natural

I need help with this assignment. It's explained in the following webpage. The additional activities aren't required, and skeleton code is provided:

http://web.cse.ohio-state.edu/software/2221/web-sw1/assignments/projects/natural-number-calculator/natural-number-calculator.html