二年级数学下册七《时分秒》1分有多长练习北师大版.doc

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1第二节 1 分有多长轻松准备1填一填。3 时( )分 5 分( )秒2 时 25 分( )分 60 分( )时120 秒( )分 1 分 40 秒( )秒2连一连。3.根据给定的时间,在钟面上画出时针或者分针。4.写出下列钟面上的时刻。2快乐学习5填空。2 分( )秒 1 时( )分 1 时 20 分( )分95 分( )时( )分 200 秒( )分( )秒6判断。 (正确的打“” ,错误的打“” )(1)2 时20 分。 ( )(2)分针从一个数字走到下一个数字是 5 分钟。 ( )(3)时针在 5 和 6 之间,分针指着 9,是 6:45。 ( )(4)时针和分钟都指着 12 时是 12 时整。 ( )(5)秒针在钟面上走一圈是 60 秒,也就是 1 分。 ( )7看一看,填一填。8填写适当的时间。(1)烧开一壶水用( )。(2)我刷牙用( )。(3)我吃早餐一般用( )。3(4)我系鞋带大约需( )。9做下面这几道题,你用了( )分。405 405 94 6429 29 156 301814 93 248 57255 44 36910.11.在里填上“ 13. 24 朵14.2 时整,图略

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