calculadora (por marto)

Private Sub Borrrar_Click()
pantalla.Caption = ""
aux.Caption = ""
aux2.Caption = ""
End Sub
Private Sub cero_Click()
pantalla.Caption = pantalla.Caption + "0"
End Sub
Private Sub cinco_Click()
pantalla.Caption = pantalla.Caption + "5"
End Sub
Private Sub coma_Click()
pantalla.Caption = pantalla.Caption + ","
End Sub
Private Sub cuatro_Click()
pantalla.Caption = pantalla.Caption + "4"
End Sub
Private Sub dividido_Click()
aux.Caption = pantalla.Caption
aux2.Caption = "/"
pantalla.Caption = ""
End Sub
Private Sub dos_Click()
pantalla.Caption = pantalla.Caption + "2"
End Sub
Private Sub igual_Click()
If aux2.Caption = "+" Then
pantalla.Caption = Val(aux.Caption) + Val(pantalla.Caption)
End If
If aux2.Caption = "-" Then
pantalla.Caption = Val(aux.Caption) - Val(pantalla.Caption)
End If
If aux2.Caption = "*" Then
pantalla.Caption = Val(aux.Caption) * Val(pantalla.Caption)
End If
If aux2.Caption = "/" Then
pantalla.Caption = Val(aux.Caption) / Val(pantalla.Caption)
End If
aux.Caption = ""
aux2.Caption = ""
End Sub
Private Sub mas_Click()
aux.Caption = pantalla.Caption
pantalla.Caption = ""
End Sub
Private Sub menos_Click()
aux.Caption = pantalla.Caption
aux2.Caption = "-"
pantalla.Caption = ""
End Sub
Private Sub nueve_Click()
pantalla.Caption = pantalla.Caption + "9"
End Sub
Private Sub ocho_Click()
pantalla.Caption = pantalla.Caption + "8"
End Sub
Private Sub por_Click()
aux.Caption = pantalla.Caption
aux2.Caption = "*"
pantalla.Caption = ""
End Sub
Private Sub seis_Click()
pantalla.Caption = pantalla.Caption + "6"
End Sub
Private Sub siete_Click()
pantalla.Caption = pantalla.Caption + "7"
End Sub
Private Sub tres_Click()
pantalla.Caption = pantalla.Caption + "3"
End Sub
Private Sub uno_Click()
pantalla.Caption = pantalla.Caption + "1"
End Sub