batch of rice was shipped from the cafeteria, and 75 kilograms were used up every day, and 500 kilograms remained after one month. How many kilograms of rice are shipped in total? (A month is calculated as 30 days)
食堂运来一批大米，每天要用去75千克，一个月后还剩下500千克．共运来大米多少千克？(一个月按30天计算)
<gadget id="calculator">75 * 30</gadget>
<output>2_250</output>

<gadget id="calculator">2_250 + 500</gadget>
<output>2_750</output>

<result>2_750</result>