A square pond is 25 meters long. Uncle Wang walks around the pond 18 times every morning. How many meters has he walked in total?
一个正方形池塘，边长25米，王叔叔每天早晨绕池塘的边走18圈，一共走了多少米？
<gadget id="calculator">25 * 4 * 18</gadget>
<output>1_800</output>

<result>1_800</result>