A steel rail used for laying railways is 12.5 meters long and weighs 44 kilograms per meter on average. There are 80 such steel rails, how many tons do they weigh in total?
铺铁路用的一种钢轨每根长是12.5米，平均每米重44千克，现有这种钢轨80根，共重多少吨？
<gadget id="calculator">80 / 1_000</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">12.5 * 44 * (2/25)</gadget>
<output>44</output>

<result>44</result>