Forum: Hjälp med miniräknare

//Includes a language
#include <iostream>
 
using namespace std;
//Using the function cout out of the namespace std and creates a main-function
using std::cout;
//Using the function cin out of the namespace std and creates a main-function
using std::cin;
 
//Creates a function of the datatype int(integer) called main
//The type int tells the compiler to store a integer here
int main()
{
    //Creates a function of the type int and gives the function a name
    //The type int tells the compiler to store a integer here
    int Number_1;
    int Number_2;
    int Amount;
 
    //The functions shows on the screen
    //Cout stands for Console out
    cout << "Write A Number\n";
    //Cin stands for Console in
    cin >> Number_1;
    cout << "Write Another Number\n";
    cin >> Number_2;
 
    Amount = Number_1 + Number_2;
 
    cout << "= " << Amount;
    cout << Amount;
 
    cin.ignore(255,'\n');
    cin.get();
     //Return ,in this case nothing, to whom wich called the funktion
    return 0;
}

#include <iostream>
 
using std::cout;
using std::cin;
 
int main()
{
 
 
int tal1 = 0,tal2 = 0,val = 0;
 
cout<<"skriv in tva tal\n";
cin>>tal1;
cin>>tal2;
 
cout<<"\n\n1.ganger\n2.plus\n3.delat\n";
cin>> val;
 
if(val == 1)
{ tal1 = tal1 * tal2;}
 
if(val== 2)
{ tal1 += tal2;}
 
if(val == 3)
{ tal1 = tal1 / tal2;}
 
else
{cout<<"fel\n";cin.get();return 0;}
 
cout<<"svar : "<<tal1<<"\n";
cin.get();
 
return 0;
}

#include <iostream>
 
using std::cout;
using std::cin;
 
int main()
{
         int Number_1 = 0,Number_2 = 0, Choice = 0;
 
         cout << "Write Two Numbers\n";
         cin >> Number_1;
         cin >> Number_2;
 
         cout << "\n\n1.Multiply\n2.Plus\n3.Divide\n";
         cin >> Choice;
 
         if(Choice == 1)
         { Number_1 = Number_1 * Number_2;}
 
         if(Choice == 2)
         { Number_1 += Number_2;}
 
         if(Choice == 3)
         { Number_1 = Number_1 / Number_2;}
 
         else
         {cout << "Wrong\n";cin.get();return 0;}
 
         cout << "Answer : " << Number_1 << "\n";
 
         cin.ignore(255,'\n');
         cin.get();
         return 0;
}

#include <iostream>
 
using namespace std;
 
int main (int argc, char* argv[]) {
    int tal1, tal2, svar;
    char raknesatt;
    cout << "Skriv uppgift: ";
    cin >> tal1 >> raknesatt >> tal2;
    if (raknesatt == '+') {
        cout << "Svar: " << tal1 + tal2 << endl;
    }
    else if (raknesatt == '-') {
        cout << "Svar: " << tal1 - tal2 << endl;
    }
    else {
        cout << "Förstod inte uppgiften" << endl;
    }
    cin.ignore(255, '\\n');
    cin.get();
    return 0;
}