OPERACIONES Y FORMULAS:
Private Sub divi_btn_Click()
resul_txt.Text = v1_txt.Text / v2_txt.Text
End Sub
Private Sub multi_btn_Click()
resul_txt.Text = v1_txt.Text * v2_txt.Text
End Sub
Private Sub resta_btn_Click()
resul_txt.Text = v1_txt.Text - v2_txt.Text
End Sub
Private Sub suma_btn_Click()
resul_txt.Text = Val(v1_txt.Text) + Val(v2_txt.Text)
End Sub