The supermarket sells 60 bottles of mineral water, each bottle of mineral water is 500ml, how many liters of mineral water are sold in total?
超市卖出60瓶矿泉水，每瓶矿泉水500毫升，共卖出多少升矿泉水．
<gadget id="calculator">60 * 500</gadget>
<output>30_000</output>

<gadget id="calculator">30_000 / 1_000</gadget>
<output>30</output>

<result>30</result>