How many square decimeters of glass is needed to make a cuboid fish tank with a length of 8 decimeters, a width of 3 decimeters and a height of 5 decimeters?
做一个长方体形状的鱼缸，长8分米，宽3分米，高5分米，需要玻璃多少平方分米？
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">40 + 15</gadget>
<output>55</output>

<gadget id="calculator">55 * 2</gadget>
<output>110</output>

<gadget id="calculator">24 + 110</gadget>
<output>134</output>

<result>134</result>