The school has a rectangular playground, 8 meters long and 6 meters wide. Prepare to expand during the summer vacation. If the length is increased by 4 meters and the width is increased by 3 meters, how many square meters is the area of the venue?
学校有一块长方形活动场地，长8米，宽6米．暑假准备扩建．把长增加4米，宽增加3米，活动场地的面积增加了多少平方米？
<gadget id="calculator">8 + 4</gadget>
<output>12</output>

<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">108 - 48</gadget>
<output>60</output>

<result>60</result>