123

#include <iostream>
using namespace std;

int main ()
{
int t;
float n1, n2, r3, r, e;

Main:

cout << "The Grand Calculator \n \n";
cout << "Enter 1 for Multiplication \nEnter 2 for Addition\nEnter 3 for Division\nEnter 4 for Subtraction\nEnter: ";
cin >> t;
     if (t == 1)
     {
        cout << "\nMultiplication Calculator\n \n";
        cout << "Please enter a number: ";
        cin >> n1;
        cout << "Please enter a second number: ";
        cin >> n2;
        cout << "\n" << "The numbers that you entered were " << n1 << " and " << n2 << ".";
        r = n1 * n2;
        cout << "\n" << "The product is: " << r << ".\n \nType 1 to return to menu, 2 to exit.";
        cin >> e;
        if (e == 1)
        {
           cout << "\n\n";
           goto Main;
        }
        else
        {
           return 0;
        }
     }
     else if (t == 2)
     {
        cout << "\nAddition Calculator\n \n";
        cout << "Please enter a number: ";
        cin >> n1;
        cout << "Please enter a second number: ";
        cin >> n2;
        cout << "\n" << "The numbers that you entered were " << n1 << " and " << n2 << ".";
        r = n1 + n2;
        cout << "\n" << "The sum is: " << r << ".\n \nType 1 to return to menu, 2 to exit.";
        cin >> e;
        if (e == 1)
        {
           cout << "\n\n";
           goto Main;
        }
        else
        {
           return 0;
        }
     }
     else if (t == 3)
     {
        cout << "\nDivision Calculator\n \n";
        cout << "Please enter a number: ";
        cin >> n1;
        cout << "Please enter a second number: ";
        cin >> n2;
        cout << "\n" << "The numbers that you entered were " << n1 << " and " << n2 << ".";
        r = n1 / n2;
        cout << "\n" << "The quotient is: " << r << ".\n \nType 1 to return to menu, 2 to exit.";
        cin >> e;
        if (e == 1)
        {
           cout << "\n\n";
           goto Main;
        }
        else
        {
           return 0;
        }
     }
     else if (t == 4)
     {
        cout << "\nSubtraction Calculator\n \n";
        cout << "Please enter a number: ";
        cin >> n1;
        cout << "Please enter a second number: ";
        cin >> n2;
        cout << "\n" << "The numbers that you entered were " << n1 << " and " << n2 << ".";
        r = n1 - n2;
        cout << "\n" << "The remainder is: " << r << ".\n \nType 1 to return to menu, 2 to exit.";
        cin >> e;
        if (e == 1)
        {
           cout << "\n\n";
           goto Main;
        }
        else
        {
           return 0;
        }
     }
return 0;
}