Alright, so I'm using switches and -

Code:

#include <iostream>
using namespace std;
int x;
int a;
int b;
int e = 100;
int f = 50;
int g = 10;
int h = 10;
void Add()
{
cout <<"\n Added 100 to " << a + b + x<< "\n";
cout << "Your final result is -\n" << e + x + a + b;
}
void Subtract()
{
cout <<"\nSubtract 50 from " << x + a + b << "\n";
cout << "Your final result is -\n" << x + a + b - f;
}
void Multiply()
{
cout <<"\nMultiplied 10 with " << x + a + b << "\n";
cout << "Your final result is -\n" << x + a + b * g;
}
void Divide()
{
cout <<"\nDivided 10 to " << x + a + b << "\n";
cout << "Your final result is -\n" << x + a + b / h;
}
int main()
{
cout << "Please input a number: ";
cin >> x;
cin.ignore();
cout << "\nYou have entered " << x << ". Please hit ENTER to continue";
cin.get();
cout << "\nPlease enter two numbers to be added to " << x << " :";
cin >> a >> b;
cin.ignore();
cout << "\nThe total is - " << a + b + x << ". " << "Please hit ENTER to continue";
cin.get();
int c;
cout<<"1. Add\n";
cout<<"2. Subtract\n";
cout<<"3. Multiply\n";
cout<<"4. Divide\n";
cin>> c;
switch (c) {
case 1:
Add();
break;
case 2:
Subtract();
break;
case 3:
Multiply();
break;
case 4:
Divide();
break;
default:
cout<<"Input not recognized. Quitting now\n";
break;
cin.get();
}
}

Add and Subtract works well with no problem. But it is Multiply and Divide that is making my head scratch.

If I put 100 into x, a and b and use Multiply to multiply 300 by 10, it doesn't return 3000, it returns 1200...

For Divide, if I put the same number, 100, into x, a and b and use Divide to divide 300 by 10, it doesn't return 30, it returns 210...

Does anyone know how to fix this?