Make a cuboid fish tank without a cover. The length is 6 decimeters, the width is 4 decimeters, and the height is 5 decimeters. How much glass is needed to make this fish tank?
做一个无盖的长方体鱼缸．长6分米，宽4分米，高5分米，制作这个鱼缸需要多大面积的玻璃？
<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">6 * 5 * 2</gadget>
<output>60</output>

<gadget id="calculator">4 * 5 * 2</gadget>
<output>40</output>

<gadget id="calculator">24 + 60 + 40</gadget>
<output>124</output>

<result>124</result>