The tortoise and the hare were running a 1000-meter race. The little rabbit thought: I can run 100 meters in one minute, but your tortoise can only run 10 meters in one minute. Who is my opponent? After the race started, when the little rabbit ran halfway, he found that he had thrown the tortoise far away, and fell asleep beside the road. When the tortoise was 40 meters away from the finish line, the little rabbit woke up and ran away. When the winner reaches the finish line, how many meters is the other one from the finish line?
龟兔进行1000米的赛跑，小兔心想：我1分钟能跑100米，而你乌龟每分钟只能跑10米，哪是我的对手．比赛开始后，当小兔跑到全程一半时，发现把乌龟甩得老远，便在路旁睡着了．当乌龟跑到距终点还有40米时，小兔醒了拔腿就跑．当胜利者到达终点时，另一个距终点还有几米？
<gadget id="calculator">1_000 / 2</gadget>
<output>500</output>

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

<gadget id="calculator">100 * 4</gadget>
<output>400</output>

<gadget id="calculator">500 - 400</gadget>
<output>100</output>

<result>100</result>