private void division_Click(object sender, EventArgs e)
{
op = "/";
First = double.Parse(TBXSCREEN.Text);
TBXSCREEN.Clear();
}
private void resta_Click(object sender, EventArgs e)
{
op = "-";
First = double.Parse(TBXSCREEN.Text);
TBXSCREEN.Clear();
}
private void multiplicacion_Click(object sender, EventArgs e)
{
op = "*";
First = double.Parse(TBXSCREEN.Text);
TBXSCREEN.Clear();
}
private void limpiar_Click(object sender, EventArgs e)
{
TBXSCREEN.Clear();
}
