It costs 280 yuan to order a copy of "Cixi Daily", and Huayuan Primary School ordered 16 copies. How much is the total cost?
订一份《慈溪日报》需要280元，花园小学订了16份，共需几元？
<gadget id="calculator">280 * 16</gadget>
<output>4_480</output>

<result>4_480</result>