最新人教版三级上册数学时分秒复习课ppt图文.ppt
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1、,1秒,秒针走过1小格,是1秒。,12,1,2,3,4,5,6,7,8,9,10,11,秒针共走过1大格,也就是5小格。是5秒。,秒针走1小格就是 秒,走1圈是 秒,也就是 分。,1分60秒,1,60,1,1时60分,钟面上有,个大格,,个小格。,时针走个大格是,分针走个小格是,时针走个大格,分针正好走,走大格是,时。,分,,圈,,分。,是,分。,12,60,1,1,5,1,60,填一填,钟面上的时刻,说一说、写一写,1,2,3,4,5,6,7,8,9,10,11,12,9时,9:03,3分,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:18,18分,1,2,3,4,5,6,
2、7,8,9,10,11,12,12时,12:40,40分,1,2,3,4,5,6,7,8,9,10,11,12,9:10,9时10分,1,2,3,4,5,6,7,8,9,10,11,12,9:05,9时5分,1,2,3,4,5,6,7,8,9,10,11,12,9时20分,9:20,1,2,3,4,5,6,7,8,9,10,11,12,10时35分,10:35,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:00,1,2,3,4,5,6,7,8,9,10,11,12,12时,12:40,1,2,3,4,5,6,7,8,9,10,11,12,8时7分,8:07,1,2,3,4,5
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