The total area of Jiexin Park is 24,000 square meters, of which buildings and roads account for 25% of the total area of the park, and the rest is green space. How many square meters is the green area of the street park?
街心公园的总面积为24000平方米，其中建筑、道路等占公园总面积的25%，其余为绿地．街心公园的绿地面积有多少平方米？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">24_000 * (3/4)</gadget>
<output>18_000</output>

<result>18_000</result>