A cuboid swimming pool with a length of 20 meters, a width of 8 meters, and a depth of 1.6 meters is pasted with tiles on the four walls and the ground. The tiles are squares with a side length of 0.2 meters. How many tiles are needed in total?
在一个长20米、宽8米、深1.6米的长方体游泳池的四壁及地面贴磁砖，磁砖是边长为0.2米的正方形，共需磁砖多少块．
<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">20 * 1.6 * 2</gadget>
<output>64</output>

<gadget id="calculator">8 * 1.6 * 2</gadget>
<output>25.6</output>

<gadget id="calculator">160 + 64 + 25.6</gadget>
<output>249.6</output>

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

<gadget id="calculator">249.6 / 0.04</gadget>
<output>6_240</output>

<result>6_240</result>