How many tiles are needed in a swimming pool with a length of 20 meters, a width of 8 meters, and a depth of 1.5 meters. The side length of the square tiles is 5 decimeters?
在一个长20米、宽8米、深1.5米的游泳池里面贴瓷砖，正方形瓷砖的边长为5分米，共需这种瓷砖多少块？
<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">20 * 1.5</gadget>
<output>30</output>

<gadget id="calculator">8 * 1.5</gadget>
<output>12</output>

<gadget id="calculator">160 + 30 + 12</gadget>
<output>202</output>

<gadget id="calculator">202 * 2</gadget>
<output>404</output>

<gadget id="calculator">404 - 160</gadget>
<output>244</output>

<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">244 / (1/4)</gadget>
<output>976</output>

<result>976</result>