A circular rice test field has a circumference of 125.6 meters. A total of 2512 kilograms of rice is harvested in this experimental field. How many kilograms of rice can be produced per square meter?
一块圆形水稻试验田，周长是125.6米．这块试验田共收水稻2512千克，求每平方米产水稻多少千克？
<gadget id="calculator">125.6 / 3.14 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 ** 2</gadget>
<output>400</output>

<gadget id="calculator">3.14 * 400</gadget>
<output>1_256</output>

<gadget id="calculator">2_512 / 1_256</gadget>
<output>2</output>

<result>2</result>