The fruit shop shipped 3 tons of fruit, sold an average of 500 kilograms per day in the first 3 days, and the rest is expected to be sold out in 5 days, how many kilograms will be sold on average per day.
水果店运来3吨水果，前3天平均每天卖出500千克，剩下的预计5天卖完，平均每天要卖多少千克．
<gadget id="calculator">3 * 1_000</gadget>
<output>3_000</output>

<gadget id="calculator">500 * 3</gadget>
<output>1_500</output>

<gadget id="calculator">3_000 - 1_500</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 / 5</gadget>
<output>300</output>

<result>300</result>