人教版二年级数学上册第1单元测试卷及答案
1第一单元测试卷一、填一填。1.测量铅笔的长度用( )作单位比较合适;测量床的长度用()作单位比较合适。2. 油画棒长()厘米。3.2米=( )厘米 300厘米=( )米30厘米-6厘米=( )厘米45厘米+20厘米=( )厘米4.甜甜的身高是90厘米,再长( )厘米,她的身高就是1米。二、辨一辨。1.下面哪些图形是线段?在下面画“√”。2.下面图形中各有几条线段?2三、在括号里填上合适的长度单位。四、在里填上“>”“<”或“=”。1米90厘米 2米200厘米 100厘米1米20厘米1米-80厘米50厘米5米1米80厘米2米五、做一做。1.量出下面线段的长度。2...
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