bag of cows weighs about 500 kilograms, and how many such cows weigh about 1 ton.
一袋头牛大约重500千克，多少头这样的牛大约重1吨．
<gadget id="calculator">1_000 / 500</gadget>
<output>2</output>

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

<result>2</result>