The swimming pool is 25 meters long. Xiao Ming swam 5 back and forth. How many meters did he swim in total?
游泳池长25米，小明游了5个来回，算一算，他一共游了多少米？
<gadget id="calculator">5 * 2 * 25</gadget>
<output>250</output>

<result>250</result>