The cafeteria shipped 500 kilograms of rice, and 17 kilograms remained after 7 days of use. How many kilograms are used on average per day?
食堂运来大米500千克，用了7天后还剩17千克，平均每天用多少千克？
<gadget id="calculator">500 - 17</gadget>
<output>483</output>

<gadget id="calculator">483 / 7</gadget>
<output>69</output>

<result>69</result>