A car travels at a constant speed on the highway at 60 kilometers per hour, how many kilometers does it travel in 2 hours?
一辆汽车在高速公路上匀速行驶，每小时行驶60千米，2小时行驶了多少千米．
<gadget id="calculator">60 * 2</gadget>
<output>120</output>

<result>120</result>