There are 1,020 people from Guangming Primary School going to the Natural History Museum, 780 people walk, and the rest take a car. If each car takes 60 people, how many cars are needed?
光明小学有1020人去自然博物馆参观，有780人步行，其余的人乘车，如果每辆车坐60人，需要几辆车？
<gadget id="calculator">1_020 - 780</gadget>
<output>240</output>

<gadget id="calculator">240 / 60</gadget>
<output>4</output>

<result>4</result>