Fangfang's bed is 18 decimeters long and 10 decimeters wide. A mat of the same size as the bed should be covered. What is the area of the mat?
芳芳的床长18分米，宽10分米，要铺上和床同样大小的凉席，凉席的面积是多少平方分米？
<gadget id="calculator">18 * 10</gadget>
<output>180</output>

<result>180</result>