The original area of the school playground is 6000 square meters. The school now decides to expand the playground. The length remains the same and the width is doubled. What is the area of the playground after the expansion?
学校操场原来的面积是6000平方米．学校现在决定扩建操场，长不变，宽扩大到原来的2倍，扩建后操场的面积是多少平方米？
<gadget id="calculator">6_000 * 2</gadget>
<output>12_000</output>

<result>12_000</result>