A rectangular lawn has an area of 320 square meters and a length of 20 meters. If the length of the lawn is increased by 16 meters and the width remains the same, what is the area of the enlarged lawn in square meters?
一块长方形草坪的面积是320平方米，长为20米．若将这块草坪的长增加16米，宽不变，扩大后的草坪面积是多少平方米？
<gadget id="calculator">20 + 16</gadget>
<output>36</output>

<gadget id="calculator">320 / 20</gadget>
<output>16</output>

<gadget id="calculator">36 * 16</gadget>
<output>576</output>

<result>576</result>