The average length of Ms. Li's step is about 75 centimeters, and she walked 540 steps around the playground. What is the approximate length of the school playground?
李老师一步的平均长度大约是75厘米，她绕操场走了一周走了540步．学校操场大约长多少米？
<gadget id="calculator">75 * 540</gadget>
<output>40_500</output>

<gadget id="calculator">40_500 / 100</gadget>
<output>405</output>

<result>405</result>