This submission requires the internet. When the user types in the numbers and presses enter the program loads http://omg.worsethanfailure.com/Entries/Requirements/TestCases.aspx and tries to find the answer in the html. If it cannot find the answer, it then asks google if it knows how to do the math. If that fails it you get a special surprise. Thing that I have noticed: It passes all the cases, but it needs to goto google to get the correct answer for test case 2, IÆll let others discover why this happens. I misspelled calculator. All the code is in the header file Form1.h