The grocery store shipped 5 tons of Chinese cabbage, sold 3,000 kilograms in the morning, and sold out in the afternoon. How many kilograms of Chinese cabbage did you sell in the afternoon?
菜店运来5吨大白菜，上午卖出3000千克，下午全部卖完．下午卖出大白菜多少千克？
<gadget id="calculator">5 * 1_000</gadget>
<output>5_000</output>

<gadget id="calculator">5_000 - 3_000</gadget>
<output>2_000</output>

<result>2_000</result>