The playground of Guanying Primary School was expanded, and the length of the playground was increased by 10 meters and the width by 8 meters. After the expansion, the length of the new playground was 60 meters and the width was 48 meters. How many square meters has the playground area increased?
冠英小学扩建操场，扩建时将操场的长增加10米，宽增加8米；扩建后新操场的长是60米，宽是48米．操场的面积增加了多少平方米？
<gadget id="calculator">60 * 48</gadget>
<output>2_880</output>

<gadget id="calculator">60 - 10</gadget>
<output>50</output>

<gadget id="calculator">48 - 8</gadget>
<output>40</output>

<gadget id="calculator">50 * 40</gadget>
<output>2_000</output>

<gadget id="calculator">2_880 - 2_000</gadget>
<output>880</output>

<result>880</result>