using System.Collections.Generic;
using System.Threading.Tasks;
static void Main(string[] args)
string firstname, lastname, insertion, studentnumber;
double FirstachievedNEDrating, FirstachievedENGrating, FirstachievedWISrating, FirstachievedPRGrating, FirstachievedDBDrating, FirstachievedALGrating,
SecondachievedNEDrating, SecondachievedENGrating, SecondachievedWISrating, SecondachievedPRGrating, SecondachievedDBDrating, SecondachievedALGrating;
Console.WriteLine("Enter insertion?");
insertion = Convert.ToString(Console.ReadLine());
Console.WriteLine("Enter last name?");
lastname = Convert.ToString(Console.ReadLine());
Console.WriteLine("Enter studentnumber?");
studentnumber = Convert.ToString(Console.ReadLine());
Console.WriteLine("Enter First achieved NED rating ?");
FirstachievedNEDrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved NED rating ?");
SecondachievedNEDrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter First achieved ENG rating ?");
FirstachievedENGrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved ENG rating ?");
SecondachievedENGrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter First achieved WIS rating ?");
FirstachievedWISrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved WIS rating ?");
SecondachievedWISrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter First achieved PRG rating ?");
FirstachievedPRGrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved PRG rating ?");
SecondachievedPRGrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter First achieved DBD rating ?");
FirstachievedDBDrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved DBD rating ?");
SecondachievedDBDrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter First achieved ALG rating ?");
FirstachievedALGrating = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Enter Second achieved ALG rating ?");
SecondachievedALGrating = Convert.ToDouble(Console.ReadLine());
double cijfer = (6.78 + 7.99) / 2;
double cijfer2 = (5.77 + (8.99 * 2)) / 3;
double test = Math.Round(6.599, 2);
double afgerondCijfer1 = Math.Round(cijfer, 1);