title: Jquery 1 + 1 = 11?
body: <p>I have a some problem on my jquery code.</p>
  
  <p>I want counting 1 + 1 in jquery but the result is "11" not "2" ... so where the problem ?? </p>
  
  <p>Here is my code :</p>
  
  <pre><code>$(document).ready(function () {
      var hasil = $(".hitdethasil&gt;.hasildet");
      var bhit = $(".hitung");
  
      $(bhit).click(function(){
          var ske = $(".iUn").val(); //assume is 1
          var ska = $(".ia").val(); //assume is 1
          var beda = $(".ib").val(); //assume is 1
          var hasilarit = ska + (ske - 1) * beda; //but in this result is 10 should the result is 1.
          $(hasil).text(hasilarit);
          console.log(hasilarit);
      });
  
      $(".iUn").keyup(function () {
          var thisis = $(this).val();
          $(".skun").text(thisis);
      });
  });
  </code></pre>
  
  <p>Where does the fault ????</p>
  
  <p>Thanks B4 and i'm sorry for my bad english ... :)</p>
  
  <p>Here is JsFiddle to see the problem ... <a href="http://jsfiddle.net/bagusa4/mqLqoL7o/" rel="nofollow">http://jsfiddle.net/bagusa4/mqLqoL7o/</a></p>