Generate Math Question

Public Sub GenerateQuestion()
        Randomize()
        Dim Lownum As Integer = 3
        Dim Highnum As Integer = 12
        Dim FirstNumber As Integer = Int((Highnum - Lownum + 1) * Rnd()) + Lownum
        Dim SecondNumber As Integer = Int((Highnum - Lownum + 1) * Rnd()) + Lownum
        Dim GenerateSymbol As Integer = CInt(Int((3 * Rnd()) + 1))
        Dim lownum1 As Integer = 0
        Dim highnum1 As Integer = 0
        If FirstNumber > SecondNumber Then
            highnum1 = FirstNumber
            lownum1 = SecondNumber
        Else
            highnum1 = SecondNumber
            lownum1 = FirstNumber
        End If
        If GenerateSymbol = 1 Then
            CorrectAnswer = highnum1 + lownum1
            lblQuestion.Text = "What is " & highnum1 & " plus " & lownum1 & "?"
        ElseIf GenerateSymbol = 2 Then
            CorrectAnswer = highnum1 - lownum1
            lblQuestion.Text = "What is " & highnum1 & " take " & lownum1 & "?"
        ElseIf GenerateSymbol = 3 Then
            CorrectAnswer = highnum1 * lownum1
            lblQuestion.Text = "What is " & highnum1 & " times " & lownum1 & "?"
        End If
    End Sub