Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim x As Integer
        Dim y As Integer
        x = TextBox1.Text
        y = TextBox2.Text
        TextBox3.Text = x + y

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim x As Integer
        Dim y As Integer
        x = TextBox1.Text
        y = TextBox2.Text
        TextBox3.Text = x - y

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim x As Integer
        Dim y As Integer
        x = TextBox1.Text
        y = TextBox2.Text
        TextBox3.Text = x * y
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        Dim x As Integer
        Dim y As Integer
        x = TextBox1.Text
        y = TextBox2.Text
        TextBox3.Text = x / y
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""


    End Sub
End Class