A cuboid fish pond with a length of 8m and a width and depth of 2m is to be built in the park. If cement is applied to the inner wall and bottom of the fish pond, 0.8m**2 can be applied per kilogram of cement. How many kilograms of cement will be needed in total?
公园里要修一个长8m，宽和深都是2m的长方体鱼池，如果在鱼池的内壁和底面抹上水泥，每千克水泥可以抹0.8m**2，一共需要多少千克水泥？
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

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

<gadget id="calculator">8 * 2 * 2</gadget>
<output>32</output>

<gadget id="calculator">16 + 8 + 32</gadget>
<output>56</output>

<gadget id="calculator">56 / 0.8</gadget>
<output>70</output>

<result>70</result>