Cut a 20-meter-long rope into two consecutive sections, each section is 2.44 meters long, how many meters are left?
把一根20米长的绳子，连续剪下两段，每段长2.44米，还剩多少米？
<gadget id="calculator">2.44 * 2</gadget>
<output>4.88</output>

<gadget id="calculator">20 - 4.88</gadget>
<output>15.12</output>

<result>15.12</result>