A fish weighs 500 grams, how many such fish weigh 1 kg.
一条鱼重500克，多少条这样的鱼重1千克．
<gadget id="calculator">1_000 / 500</gadget>
<output>2</output>

<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<result>2</result>