The school playground is 40 meters long and 30 meters wide. After the expansion, the length is doubled and the width increased by 20 meters. What is the perimeter of the expanded playground in meters?
学校操场长40米，宽30米．扩建后长是原来的2倍，宽增加了20米．扩建后的操场周长是多少米？
<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">80 + 30 + 20</gadget>
<output>130</output>

<gadget id="calculator">130 * 2</gadget>
<output>260</output>

<result>260</result>