There are 7,500 bricks, and they need to be transported 15 times by small trucks, and 10 times if they are transported by large trucks. How much more does the large cart carry each time than the small cart?
有7500块砖，用小车运要运15次，如果改用大车运，要运10次．大车比小车每次多运多少块？
<gadget id="calculator">7_500 / 10</gadget>
<output>750</output>

<gadget id="calculator">7_500 / 15</gadget>
<output>500</output>

<gadget id="calculator">750 - 500</gadget>
<output>250</output>

<result>250</result>