There used to be 7,500 tons of coal in the coal plant, and 12 trucks were used to deliver them every day. Each truck carried 6,250 dry grams of coal. How many tons of coal are left in the coal plant after two dates?
煤厂里原来有煤7500吨，每天用12辆卡车往外送，每辆卡车载煤6250干克，两个日期后煤厂还剩多少吨煤？
<gadget id="calculator">6.25 * 12 * 7 * 2</gadget>
<output>1_050</output>

<gadget id="calculator">7_500 - 1_050</gadget>
<output>6_450</output>

<result>6_450</result>