Cut a 4-meter-long rope into 4 sections on average, how many decimeters are each section?
把一根4米长的绳子平均剪成4段，每段长多少分米．
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<result>10</result>