A rectangular piece of land is 25 meters long and 18 meters wide. If the width is increased by 4 meters, what is the area of the land in square meters?
一块长方形地，长是25米，宽是18米．如果把宽再增加4米，则这块地的面积是多少平方米？
<gadget id="calculator">18 + 4</gadget>
<output>22</output>

<gadget id="calculator">25 * 22</gadget>
<output>550</output>

<result>550</result>