Mr. Wang’s house has a cube reservoir. The length of the sides measured from the inside is 8 decimeters. The walls and bottom of it are covered with a layer of ceramic tiles. How many square meters is the tiled area?
王老师家有一个正方体蓄水池，从里面量棱长是8分米，它里面的四壁和底面都贴上一层瓷砖，贴瓷砖的面积是多少平方米？
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">64 * 5</gadget>
<output>320</output>

<result>320</result>