The building materials distribution department shipped two trucks of cement, the first truck weighed 20,000 kilograms, the second truck weighed 15,000 kilograms, and each bag of cement weighed 50 kilograms. How many more bags did the first truck transport than the second truck?
建材经销部运来两车水泥，第一车载重20000千克，第二车载重15000千克，每袋水泥重50千克，第一车比第二车多运多少袋？
<gadget id="calculator">20_000 / 50</gadget>
<output>400</output>

<gadget id="calculator">15_000 / 50</gadget>
<output>300</output>

<gadget id="calculator">400 - 300</gadget>
<output>100</output>

<result>100</result>