Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles Button1.Click
        Label3.Text = ((MaskedTextBox1 & MaskedTextBox2 & MaskedTextBox3 & _
        MaskedTextBox4 & MaskedTextBox5 & MaskedTextBox6 & MaskedTextBox7 / _
        MaskedTextBox8))
    End Sub