A cuboid pool is 30 meters long, 25 meters wide and 2.5 meters deep. If cement is plastered on the four walls and the bottom, what is the area in square meters that needs to be plastered with cement?
一个长方体水池，长30米，宽25米，深2.5米．如在四壁和底面抹上水泥，求需要抹水泥部分的面积是多少平方米？
<gadget id="calculator">30 * 2.5</gadget>
<output>75</output>

<gadget id="calculator">25 * 2.5</gadget>
<output>62.5</output>

<gadget id="calculator">75 + 62.5</gadget>
<output>137.5</output>

<gadget id="calculator">137.5 * 2</gadget>
<output>275</output>

<gadget id="calculator">30 * 25</gadget>
<output>750</output>

<gadget id="calculator">275 + 750</gadget>
<output>1_025</output>

<result>1_025</result>