An airplane flies an average of 750 meters per hour. It flies for 4 hours on the first day and 6 hours on the second day. How many kilometers more does it fly on the second day than on the first day?
一架飞机平均每小时飞行750米，第一天飞行了4小时，第二天飞行了6小时，第二天比第一天多飞行了多少千米？
<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 750</gadget>
<output>1_500</output>

<result>1_500</result>