二年级上册数学-长度单位练习题-第一单元测试卷(二)
第一单元测试卷(二)1.想一想,填一填。(1)(2)伸开两臂,10个小朋友手拉手大约长( )。(3)8个田字格并排连在一起,大约长( )厘米。(4)测量数学课本的长度应用( )作单位;测量教室的长应用()作单位。(5)1米=( )厘米 5米-3米=( )厘米(6)直尺上从刻度4到刻度10之间的长度是( )厘米。(7)线段是直的,有( )个端点。(8)蚂蚁在大树下捡了一个棒棒糖,它背着棒棒糖已经爬了( )厘米,再爬( )厘米就到家了。(9)小草现在高6厘米,再长( )厘米,它就有9厘米高了。(10) 左图中有( )条线段。2.按要求做一做。(1)下图中哪些图形是...
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