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1、-精选范文、公文、论文、和其他应用文档，如需本文，请下载-1 2020 人教版七年级数学上册期末试卷及答案一、选择题：（本大题共10 小题，每小题 3 分，共 30 分）1如果 20%表示增加 20%，那么 6%表示()A增加 14%B增加 6%C减少 6%D减少26%213的倒数是()A3 B13 C-3 D133、如右图是某一立方体的侧面展开图，则该立方体是()4、青藏高原是世界上海拔最高的高原，它的面积约为2 500 000 平方千米.将2 500 000用科学记数法表示为（）70.251072.5 1062.5 10525 105、已知代数式 3y22y+6的值是 8，那么32y2y+
2、1 的值是()A 1 B 2 C 3 D 4 第 1 页，共 5 页-精选范文、公文、论文、和其他应用文档，如需本文，请下载-2 6、2、在-2，-0，（-2）5，-2，-（-2）这 5 个数中负数共有()A1 个 B 2 个 C 3 个 D 4 个7在解方程时，去分母后正确的是（）A5x153(x 1)Bx1(3 x1)C5x13(x 1)D5 x 33(x 1)8如果，那么 xyz 等于（）A4x1 B4x2 C5x1 D5x2 9如图 1，把一个长为、宽为的长方形（）沿虚线剪开，拼接成图 2，成为在一角去掉一个小正方形后的一个大正方形，则去掉的小正方形的边长为（）A B CD图 1 图
3、2 第 9 题5113xxxy3)1(2 yzmnmn2mnmn2m2nn n m n 第 2 页，共 5 页文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2
4、 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P
5、2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7
6、P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S
7、7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8
8、S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U
9、8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2
10、U8S7P2 ZB6R4P10X9N3-精选范文、公文、论文、和其他应用文档，如需本文，请下载-3 10如图，是一个几何体从正面、左面、上面看得到的平面图形，下列说法错误的是 ()第 10 题A这是一个棱锥 B 这个几何体有 4 个面C 这个几何体有 5 个顶点 D 这个几何体有 8 条棱二、填空题：（本大题共10 小题，每小题 3 分，共 30 分）11我市某天最高气温是11，最低气温是零下3，那么当天的最大温差是.12三视图都是同一平面图形的几何体有、（写两种即可）13多项式132223xxyyxx是_次_项式14多项式223368xkxyyxy不含 xy 项，则 k；15若 4 是关于的
11、方程532 的解，则 .16如图，点 A，B在数轴上对应的实数分别为m，n，则 A，B间的距离是（用含 m，n 的式子表示）17已知线段 AB 10cm，点 D是线段 AB的中点，直线 AB上有一点 C，并且BC 2 cm，则线段 DC .18钟表在 3 点 30 分时，它的时针和分针所成的角是ABm0nx第 3 页，共 5 页文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:C
12、H4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:
13、CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码
14、:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编
15、码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档
16、编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文
17、档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3
18、文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3-精选范文、公文、论文、和其他应用文档，如需本文，请下载-4 19某商品的进价是200 元，标价为 300 元，商店要求以利润不低于5%的售价打折出售，售货员最低可以打_ 折出售此商品20一个几何体是由一些大小相同的小立方块摆成的，如下图是从正面、左面、上面看这个几何体得到的平面图形，那么组成这个几何体所用的小立方块的个数是 .从正面看从左
19、面看从上面看三、解答题：本大题共6 小题，共 60 分解答时应写出文字说明、证明过程或演算步骤21计算：（共 6 分，每小题 3 分）(1)3x2+6x+5-4x2+7x6,(2)5（3a2b-ab2）（ab2+3a2b）22.计算（共 12 分，每小题 3 分）第 4 页，共 5 页文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7
20、P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S
21、7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8
22、S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U
23、8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2
24、U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D
25、2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10
26、D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3-精选范文、公文、论文、和其他应用文档，如需本文，请下载-5（1）12(-18)(-7)15 （2）(-8)4(-2)（）（10）551（）121()2423423解方程：（共 12 分，每小题 3 分）（1）7104(0.5)xx（2）0.5y 0.7=6.5 1.3y 第 5 页，共 5 页文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档
27、编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文
28、档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3
29、文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N
30、3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9
31、N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X
32、9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3文档编码:CH4G4W2Y10S4 HX10D2U8S7P2 ZB6R4P10X9N3