A rectangular vegetable field with a length of 100 meters and a width of 80 meters is drawn on the map with a scale of (1/500), what is the area in square centimeters?
一块长方形菜地，长100米，宽80米，用(1/500)的比例尺画在图上，面积应该是多少平方厘米？
<gadget id="calculator">1 / 500</gadget>
<output>1/500 = around 0.002</output>

<gadget id="calculator">100 * (1/500) * 100 * 80 * (1/500) * 100</gadget>
<output>320</output>

<result>320</result>