A barrel of oil weighs 100 kg, how many barrels of oil weigh 2 tons.
一桶油重100千克，多少桶油重2吨．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 100</gadget>
<output>20</output>

<result>20</result>