Xiaoqiang swam back and forth 3 times in the 25-meter-long swimming pool. How many meters did he swim in total?
小强在长25米的游泳池里来回游了3趟，他一共游了多少米．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">25 * 6</gadget>
<output>150</output>

<result>150</result>