一间教室长15.06米、宽8.4米,教室一周的长度是多少米?6R3O3v.O7U1_*P2Y4[6H.|2@'@)f1I
算式:提示/n)u7c,N-t+F;~6R3O3v.O7U1_*P2Y4[6H.|2@'@)f1I
答:教室一周的长度是7G;Z8Y2D5U1C)f(J9G3I米。6R3O3v.O7U1_*P2Y4[6H.|2@'@)f1I