The bus departs every 8 minutes. Mom wants to take the bus at 7:30. When she arrives at the station, it is already 7:32. How many minutes will she have to wait for the next bus?
汽车每隔8分钟开出一班，妈妈要搭7：30的这一班车，到达车站时，已是7：32，她要等待几分钟才能搭乘下一班汽车？
<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<result>6</result>