Đề cương ôn thi môn toán

Đề cương ôn thi – kiểm tra học kì 1 môn Toán lớp 6
TRƯỜNG THCS LÊ QUÝ ĐÔN
ĐỀ CƯƠNG ÔN TẬP THI – KIỂM TRA GIỮA HỌC KÌ I
MÔN TOÁN LỚP 6
NĂM HỌC 2015 – 2016
Đề số 1:
Bài 1: Tính
a) 136.23 + 136.17 – 40.36
b) 17.93 + 116.83 + 17.23
c) 29 – [16 + 3.(51 – 49)]
d) 129 – 5[29 – (6 – 1)
e) 129 – 5[29 – (6 – 1) ]2
f) [(25 – 22 .3) + (32 .4 + 16)]: 5
Bài 2: Tìm x:
a) 71 – (33 + x) = 26

b) (x + 73) – 26 = 76

c) 2(x- 51) = 2.23 + 20

d) 450 : (x – 19) = 50

e) 4(x – 3) = 72 – 110

g) 200 – (2x + 6) = 43

h) 135 – 5(x + 4) = 35

f) 2x – 49 = 5.32

Bài 3: Trong các số: 4827; 5670; 6915; 2007.

a) Số nào chia hết cho 3 mà không chia hết cho 9?

i) 32(x + 4) – 52 = 5.22


b) Số nào chia hết cho cả 2; 3; 5 và 9?
Bài 4: Tìm số tự nhiên x, biết rằng nếu chia nó với 3 rồi trừ đi 4, sau đó nhân
với 5 thì được 15.
Bài 5: Tìm số tự nhiên x, biết rằng:
a, 70 ⋮ x , 84 ⋮ x và x > 8.
b, x ⋮ 12, x ⋮ 25 , x ⋮ 30 và 0 < x < 500
Bài 6: Tìm số tự nhiên x sao cho:
a, 8 ⋮ ( x – 1 )
b, 15 ⋮ ( 2x +3 ).
Bài 7: Thay các chữ số x, y bởi các chữ số thích hợp để B = 56x3y chia hết
cho cả ba số 2, 5, 9
Bài 8:
a) Thay * bằng các chữ số nào để được số 589* chia hết cho cả 2 và 3.
b) Thay * bằng các chữ số nào để được số 792* chia hết cho cả 3 và 5.
c) Số 4a12b chia hết cho cả 2; 5 và 9.
Bài 9:
a) x ∈ Ư(20) và 0b) x ∈ Ư(30) và 5c) x ∈ BC(4) và 16 ≤ x ≤ 50
Bài 10: Phân tích ra thừa số nguyên tố các số sau: 60, 84, 420.


Bài 11:
Hãy vẽ hình theo các yêu cầu sau:
a) Vẽ đoạn thẳng PQ.

b) Vẽ tia Oy.
c) Vẽ đường thẳng m đi qua hai điểm C và D.
d) Vẽ ba điểm S, T, R không thẳng hàng sao cho TS= RT.
Bài 11:
a) Vẽ tia Ox.
b) Trên tia Ox lấy ba điểm A, B, C sao cho A và C nằm cùng phía đói với điểm
B.
c) Vẽ tia Ot là tia đối của tia OA.
—————————–
Đề số 2:
Bài 1: Thực hiện các phép tính:
a) 513 : 510 – 25.22
b) 151 – 291 : 288 + 12.3
Bài 2: tìm x:
a) 2x : 25 = 4.
b) 4(x + 41) = 400
c) (x + 7) – 25 = 13


Bài 3:
a) Cho A = 10 + 25 + x + 45 với x ∈ N. Tìm điều kiện của x để A chia hết
cho 5, A không chia hết cho 5.
b) Thay * bằng các chữ số nào để được số 589* chia hết cho 3 mà không chia
hết cho 9
c) Tìm x biết x ⋮ 25 và x < 100.
Bài 4:
a) Trong các số sau, số nào là số nguyên tố, số nào là hợp số: 37,47,57,67.
b) Phân tích số 112 ra thừa số nguyên tố.
Bài 5: Cho hai tia Ox, Oy đối nhau. Trên tia Ox lấy hai điểm A, B sao cho OA
= 2cm, OB = 5cm. Trên tia Oy lấy điểm C sao cho OC = 1cm.

a) Tính độ dài đoạn thẳng AB, BC.
b) Gọi M là trung điểm của AB. Tính AM, OM.
BÀI LÀM
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