一年级数学下册第4单元有趣的图形1认识图形综合练习2北师大版.doc

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1认识图形综合练习 21填空(1)正方形的( )条边( ) 。(2)长方形的( )边( ) 。(3)手绢是( )形,毛巾是( )形。(4)至少用( )根小棒能摆一个长方形。(5)红领巾是( )形,自行车轮胎是( )形。2给 涂上颜色3给涂上颜色4给涂上颜色56判断。 (下面各题说法对不对,对的在括号里打“” ,错的打“” )(1)两个一样大的正方形可以拼成一个长方形。 ( )2(2)两个三角形可以拼成一个四边形。 ( )(3)长方形就是正方形。 ( )78你能摆出这些图形吗?3参考答案1 (1)4,相等(2)对边,相等(3)正方形,长方形(4)4 (5)三角形 (6)圆形2略 3略4略5略6略7 (1)4 个(2)5 个(3)9 个(4)7 个(5)2 个8;9略10略

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