train travels 75 kilometers per hour, departs from A at 9:00 am, and arrives at B at 6:00 pm. How many kilometers are there between A and B?
一列火车每小时行75千米，上午9时从甲地开出，下午6时到达乙地．甲乙两地相距多少千米？
<gadget id="calculator">12 - 9</gadget>
<output>3</output>

<gadget id="calculator">3 + 6</gadget>
<output>9</output>

<gadget id="calculator">75 * 9</gadget>
<output>675</output>

<result>675</result>