少先队员在路的两旁每隔2米栽一棵树，起点和终点都栽，一共栽了42棵，这条路长多少米？)|:v8H0_(u4x)w(o*k*Y*S2d+k
算式：提示+M+W;H'z9|,t1t9q6o)|:v8H0_(u4x)w(o*k*Y*S2d+k
答：这条路长(\.^'r1g,r1u*|/]+|(g4R,w米。)|:v8H0_(u4x)w(o*k*Y*S2d+k