A rectangular experimental field is 200 meters long and 60 meters wide. Now the length is increased by 300 meters and the width is increased by 50 meters. How many square meters is the current area of the experimental field?
一块长方形试验田，长200米，宽60米，现在长增加300米，宽增加50米，这块试验田现在的面积有多少平方米？
<gadget id="calculator">200 + 300</gadget>
<output>500</output>

<gadget id="calculator">60 + 50</gadget>
<output>110</output>

<gadget id="calculator">500 * 110</gadget>
<output>55_000</output>

<result>55_000</result>