Kiểm tra 1 tiết

I. TRẮC NGHIỆM
Câu 1. Tích
là?
A. -16 B. 16 C. -12 D. 12
Câu 2. Phân số nào là phân số tối giản?
A.
B.
C.
D.

Câu 3. Dạng lũy thừa của
là?
A.
B.
C.
D.

Câu 4. Tìm x biết x - 23 = -99 +77
A. 0 B. 1 C. 2 D. -1
Câu 5. Giá trị biểu thức (x – 3).(x+1) khi x = -2 là
A. 15 B. -1 C. 5 D. 0
Câu 6. Tính (-36 +16).(-5) - 5.14 ta được
A. 80 B. -20 C. 30 D. -220
Câu 7. Số nguyên x thỏa mãn
là
A. -3 B. -4 C. -5 D. -8
Câu 8. Cặp phân số nào bằng nhau?
A.
B.
C.
D.

Câu 9. 45dm2 bằng bao nhiêu m2?
A.
B.
C.
D. Tất cả đều sai
Câu 10. Tìm số nguyên x biết
?
A. -2 B. 2 C. 3 D. -4
------------------------------------------------------------------------------------------------
TỰ LUẬN
Câu 1: a) Cho A = {x ( Z ( - 2 < x < 3}. Viết tập hợp A bằng cách liệt kê các phần tử.
b) Sắp xếp các số nguyên sau theo thứ tự giảm dần
12; - 8; 137; |-100- 324; 0 ; - 15.
c) Tìm các ước của các số nguyên sau: Ư(6) và Ư(-7)
Câu 2: Tìm số nguyên x, biết:
a) x – 105 : 3 = - 23
b) |x – 8| + 12 = 25
Câu 3: Trên cùng một nửa mặt phẳng bờ chứa tia Ox
a) Vẽ tia Oy và Ot sao cho góc xOy = 500, góc xOt = 1200.
Tia nào nằm giữa 2 tia còn lại? Vì sao?
Câu 4: Tìm số nguyên n sao cho n + 5 chia hết cho n – 2.


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