There is a swimming pool with a length of 25 meters, a width of 12 meters, and a depth of 1.4 meters. The bottom of the pool and the surrounding edges are square white tiles with a length of 2 decimeters. How many pieces are used in total?
有一个游泳池，长25米，宽12米、深1.4米，池底和四周贴边长为2分米的正方形白瓷砖，一共要用多少块？
<gadget id="calculator">25 * 12</gadget>
<output>300</output>

<gadget id="calculator">25 * 1.4 * 2</gadget>
<output>70</output>

<gadget id="calculator">12 * 1.4 * 2</gadget>
<output>33.6</output>

<gadget id="calculator">300 + 70 + 33.6</gadget>
<output>403.6</output>

<gadget id="calculator">0.2 * 0.2</gadget>
<output>0.04</output>

<gadget id="calculator">403.6 / 0.04</gadget>
<output>10_090</output>

<result>10_090</result>