A swimming pool is 23 meters long and its width is 5 meters shorter than its length. What is its area in square meters?
一个游泳池长23米，宽比长短5米，它的面积是多少平方米
<gadget id="calculator">23 - 5</gadget>
<output>18</output>

<gadget id="calculator">23 * 18</gadget>
<output>414</output>

<result>414</result>