Private Sub boton_igual_Click()
    IfStrOper="+" Then
        TxtOper = LngValor + TxtOper.Text
    End If
    ifStrOper="-" Then
        TxtOper = LongValor - TxtOper.Text
    End If
    IfSrOper="*" Then
        TxtOper = LongValor - TxtOper.Text
    End If
    I StrOper="/" Then
        TxtOper = LongValor / TxtOper.Text
    End If
End Sub

Private Sub boton_menos_Click()
    StrOper = "-"
    LngValor = TxtOper.Text
    TxtOper.Text = ""
End Sub

Private Sub boton_por_Click()
    StrOper = "*"
    LngValor = TxtOper.Text
    TxtOper.Text = ""
End Sub

Private Sub boton0_Click()
    TxtOper.Text = TxtOper.Text & "0"
End Sub

Private Sub boton1_Click()
    TxtOper.Text = TxtOper.Text & "1"
End Sub

Private Sub boton2_Click()
    TxtOper.Text = TxtOper.Text & "2"
End Sub

Private Sub boton3_Click()
    TxtOper.Text = TxtOper.Text & "3"
End Sub

Private Sub boton4_Click()
    TxtOper.Text = TxtOper.Text & "4"
End Sub

Private Sub boton5_Click()
    TxtOper.Text = TxtOper.Text & "5"
End Sub

Private Sub boton6_Click()
    TxtOper.Text = TxtOper.Text & "6"
End Sub

Private Sub boton7_Click()
    TxtOper.Text = TxtOper.Text & "7"
End Sub

Private Sub boton8_Click()
    TxtOper.Text = TxtOper.Text & "8"
End Sub

Private Sub boton9_Click()
    TxtOper.Text = TxtOper.Text & "9"
End Sub

Private Sub Form_Load()
    Var1 = "Luiggy"
    MsgBox Var1
End Sub

     IfStrOper = "+" Then
           TxtOper = LongValor + TxtOper.Text
     End if