Divide a 2-meter-long rope into 4 equal sections, how many decimeters are each section?
把2米长的绳子平均分成4段，每段长多少分米．
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">20 / 4</gadget>
<output>5</output>

<result>5</result>