De thi kiem tra giua hoc ki I toan 7

Trường THCS
Thọ vực
Bài thi khảo sát chất lượng giữa kì I
Năm học 2009-2010

Môn toán : Lớp 7 (Thời gian làm bài 90 phút)
Họ và tên......................................................................................Lớp 7................................
Số báo danh
Giám thị 1


Giám thị 2
Số phách


Điểm bằng số
Điểm bằng chữ


Giám khảo
Số phách



Bài 1( 2 điểm) : Hãy chọn đáp án đúng.
Kết quả của phép tính 46.43.24 bằng :
A. 413 B. 48 C. 29 D.222
Kết quả của phép tính 92:94 bằng :
A. 9-2 B. 38 C.32 D.3-2
Kết quả của
; x có giá trị là :
A. 3 B .
C.
và 3
Cho ba đường thẳng phân biệt a, b, c và a b, b c khi đó :
c a B. a // b C. a//c
Bài 2 ( 2 điểm). Các khẳng định sau đúng hay sai :
Hai đường thẳng phân biệt thì luôn song song với nhau.
Một đường thẳng cắt hai đường thẳng song song thì hai góc trong cùng phía bù nhau.
Hai đường thẳng cắt nhau thì vuông góc với nhau.
Một đường thẳng cắt hai đường thẳng song song thì hai góc trong cùng phía bù nhau.
Cho diểm M nằm ngoài đường thẳng a thì chỉ có 1 dường thẳng song song với đường thẳng a
Hai góc đối đỉnh thì bằng nhau.
Bài 3 ( 2 điểm ): Thực hiện phép tính
a.

b.

Bài 4 ( 2 điểm )
a. Tìm x biết :
( x < 0; x
0 )
b. Tìm x , y , z biết :
và z + y - x = 54
Bài 5 ( 2 điểm ). Cho hình vẽ, biết BO // EF, góc B = 1100, góc D = 1360.
Vẽ đường thẳng xy đi qua I và song song với BO. E F
Chứng minh : xy // EF. B O 1360
Tính số đo góc OIE. 1100

I

=================================
Bài làm

........................................................................................................................................................................................................................................................................................................................

.........................................................................................................................................................................................................................................................................................................................
. ........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................................................................