The runway in the school playground is 400 meters long. Xiaomei runs two laps every day. How many meters does she run in a week (7 days)?
学校操场的跑道长400米，小梅每天跑两圈，她一个星期(7天)跑多少米？
<gadget id="calculator">400 * 2 * 7</gadget>
<output>5_600</output>

<result>5_600</result>