13.站隊(duì)報(bào)數(shù)
(1)一列縱隊(duì)若干人。從前往后報(bào)數(shù),強(qiáng)強(qiáng)是第8名,從后向前報(bào)數(shù)是第6名。這列縱隊(duì)共多少人?
(2)一橫隊(duì)若干人。從左向右依次報(bào)數(shù),晶晶是第13名,從右向左依次報(bào)數(shù)是第7名。這一橫隊(duì)共多少人?
(1)一列縱隊(duì)若干人。從前往后報(bào)數(shù),強(qiáng)強(qiáng)是第8名,從后向前報(bào)數(shù)是第6名。這列縱隊(duì)共多少人?
(2)一橫隊(duì)若干人。從左向右依次報(bào)數(shù),晶晶是第13名,從右向左依次報(bào)數(shù)是第7名。這一橫隊(duì)共多少人?