JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.0-rc.2/angular.js"></script>
<div ng-app="myApp">
    <div ng-controller="MyCtrl">
        Billing State:
        <select
            ng-model="address.state"
            ng-options="state.lookupCode as state.description for state in lov_state"></select>
                 <select
            ng-model="unit.state"
            ng-options="state.lookupCode as state.description for state in lov_unit"></select>


        <tt>State selected: {{address.state}} * {{unit.state}} = {{address.state * unit.state}}</tt>
    </div>

</div>

JavaScript

var myApp = angular.module('myApp', []);

myApp.controller('MyCtrl', function($scope) {

    $scope.addresses = [
        {'state': '1'},
        {'state': '2'},
        {'state': '3'}
    ];


    $scope.units = [
        {'state': '1'},
        {'state': '2'},
        {'state': '3'}
    ];



    $scope.lov_state = [
        {'lookupCode': '1', 'description': 'Km'},
        {'lookupCode': '2', 'description': 'Meter'},
        {'lookupCode': '3', 'description': 'Centi'},

    ];

      $scope.lov_unit = [
        {'lookupCode': '1', 'description': 'Km'},
        {'lookupCode': '2', 'description': 'Meter'},
        {'lookupCode': '3', 'description': 'Centi'},

    ];
});