Xiao Ming walks around a square flower bed for a total of 125 steps. It is known that the length of each step of Xiaoming is 64 cm, what is the area of this square flower bed in square meters?
小明沿着一个正方形花坛走一周，共走了125步．已知小明的每步长度是64厘米，这个正方形花坛的面积是多少平方米？
<gadget id="calculator">125 / 100 / 4</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">64 * (5/16)</gadget>
<output>20</output>

<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<result>400</result>