Fold an 8 decimeter long rope in half twice, how many decimeters is each section?
把8分米长的绳子对折2次，每段长多少分米．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<result>2</result>