二年级上册数学认识米和厘米练习题
二年级数学认识米和厘米练习题一、填空题1、在( )里填上适当的单位.(1)铅笔长18( )(2)手掌宽7( )(3)楼房高40( )(4)妹妹身高98( )(5)小红身高1()25厘米2、填空.(1)24厘米+17厘米=( )厘米(2)72厘米-27厘米=( )厘米(3)1米=( )厘米(4)45米+36米=( )米(5)2米+50厘米=( )米( )厘米(6)在直线上点两点,这两点间的一段叫( ).(7)量比较短的物体,可以用( )做单位.量比较长的物体或距离,通常用( )做单位.3、有三条线段,第一条线段长9厘米,第二条线段长7厘米,第三条...
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