There is a swimming pool in the Children's Palace, which is 25 meters long, 20 meters wide and 3 meters deep. Now the water surface in the pool is 0.2 meters away from the mouth of the pool, how many cubic meters of water is found in the pool?
少年宫有一座游泳池，长25米，宽20米，深3米．现在池内水面距离池口0.2米，求出池内存水多少立方米？
<gadget id="calculator">3 - 0.2</gadget>
<output>2.8</output>

<gadget id="calculator">25 * 20 * 2.8</gadget>
<output>1_400</output>

<result>1_400</result>