The main stadium of the 2008 Olympic Games, the National Stadium, is 330 meters long from north to south and 280 meters wide from east to west. How many hectares does it cover?
2008年奥运会的主体育场--国家体育场南北长330米，东西宽280米，占地多少公顷？
<gadget id="calculator">330 * 280</gadget>
<output>92_400</output>

<gadget id="calculator">92_400 / 10_000</gadget>
<output>231/25 = around 9.24</output>

<result>231/25 = around 9.24</result>