piece of steel is 18.4 meters long. After sawing off 3.8 meters, how many meters longer is the remaining one?
一根钢材长18.4米，锯下3.8米后，剩下的比锯下的长几米？
<gadget id="calculator">18.4 - 3.8</gadget>
<output>14.6</output>

<gadget id="calculator">14.6 - 3.8</gadget>
<output>10.8</output>

<result>10.8</result>