Sample Angular

<!DOCTYPE html>
<html ng-app>
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.0.3/angular.min.js"></script>
  </head> 
  <body>
    <input type="number" ng-model="v1"/>+
    <input type="number"ng-model="v2"/>
    = {{v1  + v2}}
  </body>
</html>