二年级数学下册四《测量》铅笔有多长练习1北师大版.doc

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1铅笔有多长 一、量较长物体的长度,可以用( )作单位。量较短物体的长度可以用( )作单位。二、量物体的长度时,要把尺子的( )刻度对准物体的一端,再看物体的另一端对着几。三、1 米=( )厘米 400 厘米=( )米。四、在( )里填上合适的单位。一本书厚 1( ) 手掌的宽约 8( )操场长约 60( ) 课桌的高 65( )一条跳绳长 2( ) 哥哥的身高 1( )28( )五、30 米+8 米=( )米 12 厘米-7 厘米=( )厘米27 厘米+6 厘米=( )厘米 54 米-4 米=( )米参考答案:一、量较长物体的长度,可以用(米 )作单位。量较短物体的长度可以用(厘米 )作单位。二、量物体的长度时,要把尺子的(0 )刻度对准物体的一端,再看物体的另一端对着几。三、1 米=(100 )厘米 400 厘米=(4 )米。四、在( )里填上合适的单位。一本书厚 1(厘米 ) 2手掌的宽约 8(厘米 )操场长约 60(米 ) 课桌的高 65(厘米 )一条跳绳长 2(米 ) 哥哥的身高 1(米 )28(厘米 )五、30 米+8 米=(38 )米 12 厘米-7 厘米=(19 )厘米27 厘米+6 厘米=(33 )厘米 54 米-4 米=(50 )米

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