A cuboid pool is 6 meters long, 5 meters wide and 12 meters deep. Paste square tiles with a continuous length of 5 decimeters around the pool and on the bottom surface. How many pieces of such tiles are needed at least?
一个长方体水池，长6米，宽5米，深12米．在水池四周和底面贴上连长5分米的正方形瓷砖，至少需这样的瓷砖多少块？
<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">6 * 12 * 2</gadget>
<output>144</output>

<gadget id="calculator">5 * 12 * 2</gadget>
<output>120</output>

<gadget id="calculator">30 + 144 + 120</gadget>
<output>294</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">5 * (1/20)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">294 / (1/4)</gadget>
<output>1_176</output>

<result>1_176</result>