There are 236 ginkgo trees planted on one side of Kangkang Road (both ends are planted), and the distance between each two trees is 8 meters. How long is the healthy road in meters?
健康路的一侧栽了236棵银杏树(两端都栽)每两棵树之间相距8米．健康路长多少米．
<gadget id="calculator">236 - 1</gadget>
<output>235</output>

<gadget id="calculator">8 * 235</gadget>
<output>1_880</output>

<result>1_880</result>