Uncle Wang planted 12 pear trees, and each tree can harvest 80 kilograms of pears on average. If each 5 kilograms is packed in a box, how many cartons should be prepared?
王叔叔栽了12棵梨树，平均每棵树能收80千克梨，如果每5千克装一箱，要准备多少个纸箱？
<gadget id="calculator">12 * 80</gadget>
<output>960</output>

<gadget id="calculator">960 / 5</gadget>
<output>192</output>

<result>192</result>