Dim Nclases, totalnotas, nota as integer
Console.WriteLine("Cuantas notas desea promediar")
Nclases = Console.ReadLine()
For incremental =1 to Nclases
Console.WriteLine("ngrese nota."& incremental &"de" &Nclases)
nota = Console.ReadLine()
totalnotas = totalnotas + nota
promedio = totalnotas / Nclases
Console.WriteLine("el promedio es: {0:F2} "&promedio)