It is 20 kilometers from the zoo to the train station. Master Zhang drives 5 round trips every day. How many kilometers does Master Zhang drive every day?
从动物园到火车站20千米，张师傅每天开车行驶5个来回，张师傅每天行驶多少千米？
<gadget id="calculator">20 + 20</gadget>
<output>40</output>

<gadget id="calculator">40 * 5</gadget>
<output>200</output>

<result>200</result>