A cow weighs 250 kg, how many cows weigh 1 ton.
一头牛重250千克，多少头牛重1吨．
<gadget id="calculator">1_000 / 250</gadget>
<output>4</output>

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

<result>4</result>