A barrel of oil weighs 200 kg, how many barrels of this oil weigh 1 ton.
一桶油200千克，多少桶这样的油重1吨．
<gadget id="calculator">1_000 / 200</gadget>
<output>5</output>

<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<result>5</result>