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Người gửi: Hoàng Luận (trang riêng)
Ngày gửi: 22h:55' 23-12-2010
Dung lượng: 64.5 KB
Số lượt tải: 2
Nguồn:
Người gửi: Hoàng Luận (trang riêng)
Ngày gửi: 22h:55' 23-12-2010
Dung lượng: 64.5 KB
Số lượt tải: 2
Số lượt thích:
0 người
Trường THCS Phạm Kha
Họ và tên:..............................................................................
Lớp 7
Kiểm tra Học kỳ I
Môn: toán lớp 7
Năm học 2010 - 2011
Thời gian: 90 phút
Điểm
Đề bài :
Bài 1: (1,5đ) Thực hiện phép tính:
a) ; b)
Bài 2: (1,5đ) Tìm x biết:
a) b)
Bài 3: (1,) Cho x và y là hai đại lượng tỉ lệ thuận với nhau. Khi x = 12 thì y = -3
Xác định hệ số tỉ lệ của y đối với x.
Viết công thức biểu diễn y theo x .
Tính y khi x = - 8
Bài 4: (2đ) Cho biết 45 công nhân phải mất 12 ngày mới xây xong một bức tường. Hỏi nếu có 60 công nhân cùng xây xong bức tường đó thì hết bao nhiêu ngày? Biết rằng năng suất làm việc của mỗi người là như nhau.
Bài 5: (3đ) Cho tam giác ABC (). Gọi M là trung điểm của cạnh AC. Trên tia BM xác định điểm E sao cho ME = MB.
a) Chứng minh: AB = CE
b) Tính số đo
c) minh: AE//BC
Bài 6: (0,5đ) So sánh: và
Bài làm
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Họ và tên:..............................................................................
Lớp 7
Kiểm tra Học kỳ I
Môn: toán lớp 7
Năm học 2010 - 2011
Thời gian: 90 phút
Điểm
Đề bài :
Bài 1: (1,5đ) Thực hiện phép tính:
a) ; b)
Bài 2: (1,5đ) Tìm x biết:
a) b)
Bài 3: (1,) Cho x và y là hai đại lượng tỉ lệ thuận với nhau. Khi x = 12 thì y = -3
Xác định hệ số tỉ lệ của y đối với x.
Viết công thức biểu diễn y theo x .
Tính y khi x = - 8
Bài 4: (2đ) Cho biết 45 công nhân phải mất 12 ngày mới xây xong một bức tường. Hỏi nếu có 60 công nhân cùng xây xong bức tường đó thì hết bao nhiêu ngày? Biết rằng năng suất làm việc của mỗi người là như nhau.
Bài 5: (3đ) Cho tam giác ABC (). Gọi M là trung điểm của cạnh AC. Trên tia BM xác định điểm E sao cho ME = MB.
a) Chứng minh: AB = CE
b) Tính số đo
c) minh: AE//BC
Bài 6: (0,5đ) So sánh: và
Bài làm
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