How many bottles of 250ml of milk should be poured into a 1 liter container.
要将一个1升得容器装满的话，要倒入多少瓶250毫升的牛奶．
<gadget id="calculator">1_000 / 250</gadget>
<output>4</output>

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

<result>4</result>