It takes 250 meters to run one lap along the school playground, how many laps do you need to run to make 1 kilometer.
沿学校操场跑一圈是250米，要跑多少圈才是1千米．
<gadget id="calculator">1_000 / 250</gadget>
<output>4</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<result>4</result>