HTML

<span class="counter">10</span>
<span class="counter">20</span>
<span class="counter">29</span>
<span class="counter">40</span>
<span class="counter">50</span>
<span class="counter">60</span>

<!--javascript-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/waypoints/2.0.3/waypoints.min.js"></script>
<script src="jquery.counterup.js"></script>

JAVASCRIPT

$(document).ready(function(){
    $('.counter').counterUp();
});

REFERENCE

  1. 'jquery.counterup.js' 다운로드 링크