<div>
    <div ng-repeat="order in orders">
        Table: {{order.tableId}} -
        <button type="button" ng-click="deliverOrder({tableId:order.tableId})">Deliver</button>
        <table class="table table-striped">
            <thead>
                <tr>
                    <th>Description</th>
                    <th>Qty</th>
                    <th>Total</th>
                    <th>x</th>
                </tr>
            </thead>
            <tbody>
                <tr ng-repeat="item in order.items">
                    <td>{{item.description}}</td>
                    <td>{{item.qty}}</td>
                    <td>{{item.total | currency}}</td>
                    <td>
                        <button type="button" ng-click="addItemToOrder(
                        {tableId:order.tableId, 
                            menuItemId:item.menuId})">+</button>
                        <button type="button" ng-click="removeItemFromOrder({tableId:order.tableId, menuItemId:item.menuId})">-</button>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

<div>
    <div ng-repeat="order in orders">
        Table: {{order.tableId}} -
        <button type="button" ng-click="deliverOrder({tableId:order.tableId})">Deliver</button>
        <table class="table table-striped">
            <thead>
                <tr>
                    <th>Description</th>
                    <th>Qty</th>
                    <th>Total</th>
                    <th>x</th>
                </tr>
            </thead>
            <tbody>
                <tr ng-repeat="item in order.items">
                    <td>{{item.description}}</td>
                    <td>{{item.qty}}</td>
                    <td>{{item.total | currency}}</td>
                    <td>
                        <add-item
                            on-add-item-to-order="addItemToOrder(
                        {tableId:order.tableId, 
                            menuItemId:item.menuId})"></add-item>
                        <remove-item
                            on-remove-item-from-order="removeItemFromOrder({tableId:order.tableId, menuItemId:item.menuId})">
                        </remove-item>
                       
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

Refactor completed orders to use add-item/remove-item
Refactor completed orders to use add-item/remove-item
