A car travels x kilometers per hour on average. It travels for 3 hours in the morning and 5 hours in the afternoon. How much less travel in the morning than in the afternoon?
一辆小轿车平均每小时行x千米，上午行了3小时，下午行了5小时，上午比下午少行多少．
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>