The school's experimental field is a rectangle with a length of 25 meters and a width 3 meters less than the length. It is planned to use half of it to plant high-quality fruit tree seedlings. What is the area for planting high-quality fruit tree seedlings?
学校试验田是一块长25米，宽比长少3米的长方形，计划用它的一半种优质果树苗，种优质果树苗的面积是多少？
<gadget id="calculator">25 - 3</gadget>
<output>22</output>

<gadget id="calculator">22 / 2</gadget>
<output>11</output>

<gadget id="calculator">25 * 11</gadget>
<output>275</output>

<result>275</result>