Bài kiểm tra một tiết Đại số Lớp 9 - Năm học 2011-2012 - Phòng GD & ĐT Chương Mỹ

Phßng GD&®t ch­¬ng mü
Tr­êng THCS:...........................
Hä vµ tªn:..................................
Líp:...........................................
bµi kiĨm tra mét tiÕt
N¨m häc: 2011 – 2012
M«n: §¹i sè 9
Thêi gian lµm bµi: 45 phĩt
§iĨm
NhËn xÐt
I/ TRẮC NGHIỆM : (2 điểm)
Hãy khoanh tròn các chữ cái đứng trước câu trả lời đúng.
Bài 1: Để có nghĩa thì x phải ø: A. B. C. D. 
Bài 2: : Kết quả của phép tính là:
 A. B. C. D. 
Bài 3: Kết quả khi thu gọn biểu thức là :
	A) 	 B) -	 C) 5	 D) -5
Bài 4: Điền dấu >; < ; = vào ô vuông : 
1) o	2) - o -
	3) o 3	 	 4) o 
 II.TỰ LUẬN ( 6 Điểm )
 Bài 1: ( 3 điểm ). Rút gọn các biểu thức sau:
 a) 
 b ) 
Bài 2: ( 2 điểm ) Tìm x biết 
 a/ 
 b/
Bài 3: ( 2 điểm ).với x>0 và x 1
 a. Rút gọn P 
 b. Tính giá trị của P khi x =2011
Bài4:(0.5điểm) Cho . Tìm a để M là số nguyên
Bài làm
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................
.................................................................................................................................................................................