新疆巴音郭楞蒙古自治州库尔勒市第十中学2026一2027学年第一学期七年级数学期中试卷(无答案)

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库尔勒市第十中学2026—2027学年第一学期七年级数学(期中)测试卷

(满分:100分,考试时间:100分钟,考试范围:第一二三章)

一、单选题(每小题3分,共24分)

1.如果收入100元记作元,那么支出80元应记作(    )

A.元 B.元 C.元 D.元

2.的相反数是(    )

A. B. C. D.

3.某市某天早晨的气温是,到中午气温上升了,那么中午的气温是(    )

A. B. C. D.

4.在数轴上,表示的点与表示3的点之间的距离是(    )

A. B. C. D.

5.计算的结果是(    )

A. B. C. D.

6.用科学记数法表示380000,正确的是(    )

A. B. C. D.

7.用代数式表示“a的2倍与b的差”,正确的是(    )

A. B.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 C.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 D.2

8.定义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,例如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,则的结果为(    )

A. B. C. D.

二、填空题(每题3分,共18分)

9.如果向东走记作,那么向西走记作_________.

10.的相反数是_________.

11.比较大小:_________(填“”、“<”或“=”)

12.将566.1235精确到个位是_________.

13.当时,代数式的值是_________.

14.已知,则_________.

三、解答题(共58分)

15.请把下面的有理数分别填入相应的大括号内:

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