A residential area needs to plant a square lawn with a side length of 25 meters. If it costs 9 yuan per square meter to plant turf, how much does it cost to plant this lawn?
一个住宅小区要种植一块边长为25米的正方形草坪．如果种植每平方米草皮花费9元，那么种植这块草坪一共花费多少元？
<gadget id="calculator">25 * 25 * 9</gadget>
<output>5_625</output>

<result>5_625</result>