It costs 16 yuan to order a newspaper for half a year. Uncle Zhang wants to subscribe to three quarterly newspapers, how much does it cost?
订一份报纸半年需16元．张叔叔想订阅三个季度的报纸，需要多少钱？
<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<result>24</result>