The fruit store shipped 2 tons of fruit, sold 687 kg in the morning and 819 kg in the afternoon, how many kilograms of fruit does the fruit store have?
水果店运来2吨水果，上午卖出687千克，下午卖出819千克，水果店还有多少千克水果？
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 - 687 - 819</gadget>
<output>494</output>

<result>494</result>