A cuboid cistern is 12 meters long, 8 meters wide, and 4 meters high. If the four walls and the ground are covered with square tiles of 4 square decimeters, how many tiles are needed?
一个长方体蓄水池，长12米，宽8米，高4米，如果将四壁和地面用4平方分米的正方形瓷砖贴上，需要多少块？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">96 + 48 + 32</gadget>
<output>176</output>

<gadget id="calculator">176 * 2</gadget>
<output>352</output>

<gadget id="calculator">352 - 96</gadget>
<output>256</output>

<gadget id="calculator">256 / 0.04</gadget>
<output>6_400</output>

<result>6_400</result>