Đề kiểm tra 15 phút Chương I môn Toán đại Lớp 7 (Đề B) - Trường THCS Kim Đồng (Kèm đáp án)

TRƯỜNG THCS KIM ĐỒNG KIỂM TRA 
 Năm học 2015 - 2016 Môn : Toán - Lớp: 7 - Thời gian: 15 phút
 Họ và tên học sinh:  Lớp :...
 Đề B: Điểm: 
PHẦN TRẮC NGHIỆM: ( 4,0 điểm )
Học sinh khoanh tròn vào chữ cái đầu câu trả lời đúng nhất.
Câu 1: Kết quả của phép tính là:
a) 15 b) –15 c) –17 d) 17
Câu 2: So sánh hai số hữu tỉ và , ta có:
a) b) x y 
Câu 3: Khẳng định nào sau đây đúng?
a) . b) .
c) . d) .
Câu 4: Hai tỉ số nào sau đây lập thành một tỉ lệ thức ?
a) và b) và c) và d) và 
 B. PHẦN TỰ LUẬN: ( 6,0 điểm )
Bài 1: ( 3,0 điểm) 
 Thực hiện các phép tính sau:
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Bài 2: ( 2,0 điểm)
 Tìm x, biết:
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Bài 3: (1,0 điểm)
 Tính nhanh:
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