A cistern is 12 meters long, 8 meters wide, and 2.5 meters deep. It is necessary to plaster the surrounding area and the bottom of the pool. How many square meters is the area where the cement is to be plastered?
一个蓄水池长12米，宽8米，深2.5米，要在四周和池底抹水泥，抹水泥部分的面积是多少平方米？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 2.5</gadget>
<output>30</output>

<gadget id="calculator">8 * 2.5</gadget>
<output>20</output>

<gadget id="calculator">30 + 20</gadget>
<output>50</output>

<gadget id="calculator">50 * 2</gadget>
<output>100</output>

<gadget id="calculator">96 + 100</gadget>
<output>196</output>

<result>196</result>