document.writeln("Exercise 3.1");
document.writeln("<hr>");

var tal1;
var tal2;

function numberInput()
{
    tal1 = prompt("Välkommen till snabbräknaren", "Skriv tal 1");
    tal2 = prompt("Välkommen till snabbräknaren", "Skriv tal 2");
}

function addition()
{
    var additionResult;
    additionResult = parseInt(tal1) + parseInt(tal2);
    document.writeln(tal1 + " + " + tal2 + " = " + additionResult);
}

function multiply()
{
    var multipliedResult;
    multipliedResult = parseInt(tal1) * parseInt(tal2);
    document.writeln(tal1 + " * " + tal2 + " = " + multipliedResult);
}

function subtract()
{
    var subtractedResult;
    subtractedResult = parseInt(tal1) - parseInt(tal2);
    document.writeln(tal1 + " - " + tal2 + " = " + subtractedResult);
}

function division()
{
    var dividedResult;
    dividedResult = parseInt(tal1) / parseInt(tal2);
    document.writeln(tal1 + " / " + tal2 + " = " + dividedResult);
}

numberInput();
addition();
multiply();
subtract();
division();