title: Add TextBox strings as numbers
body: <p>I'm making a counter that updates when the calculate button is pressed, but when I press it it add it like:</p>
  
  <pre><code>11111
  </code></pre>
  
  <p>where the answer should be <code>5</code>.</p>
  
  <pre><code>    Const tax = 1.05
  
      Dim capPrice = 4.0
      Dim espPrice = 2.5
      Dim latPrice = 3.5
      Dim icedPrice = 3.0
  
  
      'keeping here teporarily
  
      Dim takeAway = True
  
      If (takeAway = True) Then
  
          capCounter.text = capCounter.text + capAmount.text
          espCounter.Text = espCounter.Text + espAmount.Text
          latCounter.Text = latCounter.Text + latAmount.Text
          icedCounter.Text = icedCounter.Text + icedAmount.Text
  </code></pre>