exe size

[PT Exorcist]

i did this test program and compiled it...but why da hell do it make an exe with about 500kb!??!

// test1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
using namespace std;

class Maths
{
    public:
        static void Maths::Intro()
        {
            cout << "You can execute up to 4 mathematical operations:\n";
            cout << "\tAdd\t\t1\n";
            cout << "\tSubtract\t2\n";
            cout << "\tMulitply\t3\n";
            cout << "\tDivide\t\t4\n\n";
            cout << "Which one you want to perform?\n(Type the number of the operation)\n";
        }

        static int Maths::Add(int num1, int num2)
        {
            return num1 + num2;
        }

        static int Maths::Subtract(int num1, int num2)
        {
            return num1 - num2;
        }

        static int Maths::Multiply(int num1, int num2)
        {
            return num1 * num2;
        }

        static int Maths::Divide(int num1, int num2)
        {
            return num1 / num2;
        }
};

int _tmain(int argc, _TCHAR* argv[])
{
    int res, num1, num2;
    Maths::Intro();
    cin >> res;
    cout << "Now put the first number: ";
    cin >> num1;
    cout << "\nNow put the second number: ";
    cin >> num2;

    switch (res)
    {
    case 1:
        cout << num1 << " + " << num2 << " = " << Maths::Add(num1, num2);
        break;
    case 2:
        cout << num1 << " - " << num2 << " = " << Maths::Subtract(num1, num2);
        break;
    case 3:
        cout << num1 << " * " << num2 << " = " << Maths::Multiply(num1, num2);
        break;
    case 4:
        cout << num1 << " / " << num2 << " = " << Maths::Divide(num1, num2);
        break;
    default:
        cout << "It wasn't possible to perform the desired operation";
    }

    cin >> res;
    
    return 0;
}