Xiao Ming's family goes to Beijing for fun, and it takes 5.6 hours by train. The average speed of the train is 80.5 km/h. How many kilometers did Xiao Ming's family travel by train?
小明一家去北京游玩，要做5.6小时的火车，火车的平均速度是80.5千米/时．小明一家坐火车走了多少千米？
<gadget id="calculator">80.5 * 5.6</gadget>
<output>450.8</output>

<result>450.8</result>