phòng giáo dục-đào tạo
huyện trực ninh
Họ và tên.....................................................
Lớp 6...........Số BD........................................
Trờng THcS..............................................
bài kiểm tra chất lợng giai đoạn I
Năm học 2004-2005
Môn Toán lớp 7
Thời gian 90 ( Không kể thời gian giao đề )
Số phách ......................
Điểm bài thi :Bằng số :..........................
Bằng chữ.............................
Số phách :......................
Câu I (2 điểm ) :
Điền số thích hợp vào ô trống :
Câu II ( 1 điểm):
Điền dấu X vào ô trống cho thích hợp :

Câu đúng Sai
1. Hai đờng thẳng vuông góc thì cắt nhau
2. Hai đờng thẳng cắt nhau thì vuông góc
3. Hai dờng thẳng cắt nhau tạo thành hai cặp góc đối đỉnh
4. Hai tia phân giác của hai góc kề nhau thì vuông góc với
nhau
5. Hai góc bằng nhau thì đối đỉnh
6.Hai góc có cùng số đo 90
0
và đối đỉnh với nhau thì tạo thành
hai cặp góc đối đỉnh.
1. x
2000

.x = x
2004
2. x
2004
: x = 1
3. 3
150
= (3
2
)
4.






=















5
2
4
2
5
2
5.
15
3
5
4
3








=















6.
10
2
1
2
2
1






=
















7. 75
20
= (3.
2
)
20
=3
20
.
40
C©u Iii ( 2,0 ®iÓm ) Thùc hiÖn phÐp tÝnh mét c¸ch hîp lý:
a)
11
7
:
9
5
4,0
11
7
:
9
4
6,0







+−+






+−
Bµi lµm : ....................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
b)






−







+
7
2
14
3
1
12:
3
10
4
3
1
Bµi lµm : ....................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
c)
36
415
8.6
9.2
Bµi lµm : ....................................................................................................................
.........................................................................................................................................
.........................................................................................................................................

.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
Câu IV (2điểm ) Tìm x biết :

a)
8
3
=
x
b)
5,65,32
=
x
Bài làm : ....................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
Câu IV (1,5điểm ) Cho tỷ lệ thức

25
yx
=
Tìm giá trị chung của hai tỷ số trên nếu biết 2x y = - 0,8
Bài làm........................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
C©u V ( 1,5 ®iÓm )
Cho h×nh vÏ. BiÕt a//b. TÝnh sè ®o
gãc x, gãc B vµ gi¶i thÝch v× sao
tÝnh ®îc.
Bµilµm.........................................
...............................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
C©u VI ( 1,0 ®iÓm ) So s¸nh 2
300
vµ 3
200

Bµi lµm........................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
.........................................................................................................................................
HÕt
120
0
D
x
B
A
a
b
?
C