The supermarket used to have 3 tons of rice, but now it has shipped 3,300 kilograms of rice, and it is going to be sold out in 7 days. How many kilograms will it sell on average every day?
超市原来有3吨大米，现在又运来3300千克，准备7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">3_000 + 3_300</gadget>
<output>6_300</output>

<gadget id="calculator">6_300 / 7</gadget>
<output>900</output>

<result>900</result>