The distance between A and B is 200 kilometers. A car drives from A to B at 80 kilometers per hour. After 2 hours, how many kilometers will the car be from B?
甲、乙两地相距200千米，一辆汽车从甲地开往乙地，每小时行80千米，2小时后，这辆汽车距乙地还有多少千米？
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">200 - 160</gadget>
<output>40</output>

<result>40</result>