A cuboid iron sheet sink without a cover is 12 decimeters long, 5 decimeters wide, and 2 decimeters high. How many square meters of iron sheets are needed to make this sink?
一个无盖的长方体铁皮水槽，长12分米、宽5分米、高2分米，做这个水槽至少需要铁皮多少平方米？
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">12 * 2 * 2</gadget>
<output>48</output>

<gadget id="calculator">5 * 2 * 2</gadget>
<output>20</output>

<gadget id="calculator">60 + 48 + 20</gadget>
<output>128</output>

<gadget id="calculator">128 / 100</gadget>
<output>32/25 = around 1.28</output>

<result>32/25 = around 1.28</result>