Tui nek tui nek, hỏi lm jk z, âm mưu đen tối chứ gì cần đây kêu con thần kinh thang tru đến đây ko , em iu, iu lắm cơ ý

1. There are many road sighs in our street .

2. How do you go to school ?

3. There is a rice paddy next to my house .

4. He likes a bottle of cooking oil.

5. Would you like a cup of tea ?

6. It is never hot in the winter.

7. My mother sometimes goes to work by motorbike .

8. Are you going to go to Ha Long Bay this summer vacation ?

9. What are they doing now ?

10. When do you go to work ?

1. to protect \(\rightarrow\) protect

2. feel \(\rightarrow\) feels

3. often is \(\rightarrow\) is often

4. many \(\rightarrow\) much

Mơ ak , có cx ko cho, lên hỏi ông google nhá , ông ấy trên cả thông minh luôn !!!

a) 2x-35=15

2x=15+35

2x=50

x= 50 : 2

x=25

Vậy x = 25

b) 3x + 17 = 2

3x= 2-17

3x= -15

x=-15 : 3

x= -5

Vậy x= -5

c) | x-1 | = 0

\(\Rightarrow\) x-1 = 0

\(\Rightarrow\)x = 0+1

\(\Rightarrow\)x=1

Vậy x=1

1. Her sister doesn't want any sugar. Does her sister want any sugar ?

2. Nam can't speak English. Can Nam speak English ?

3. They don't often play soccer in the afternoon . Do they often play soccer in the afternoon ?

4. I am not going to visit my friend . Are you going to visit your friend ?

Câu 1 : + Viết các hỗn số sau dưới dạng phân số : a) \(5\dfrac{1}{2}\) b) \(-3\dfrac{3}{4}\)

+ Viết các phân số sau dưới dạng hỗn số : c) \(\dfrac{19}{3}\) d) \(-\dfrac{38}{9}\)

Câu 2 : Rút gọn các biểu thức sau :

a) \(\dfrac{5.13}{26.35}\) b) \(\dfrac{49.2+49.7}{49}\)

Câu 3 : Thực hiện phép tính ( tính nhanh nếu có thể )

a) \(\dfrac{4}{5}+\dfrac{-12}{5}\) b) \(\dfrac{1}{3}+\dfrac{3}{8}\) c) \(\dfrac{-5}{7}.\dfrac{2}{11}+\dfrac{-5}{7}.\dfrac{9}{11}\)

Câu 4 : Tìm x biết

a) x.\(\dfrac{3}{7}=\dfrac{2}{3}\) b) \(\dfrac{2}{3}x+\dfrac{1}{4}=\dfrac{7}{12}\)

Câu 5 : Tính giá trị biểu thức theo 2 cách : B = \(\left(6\dfrac{4}{5}+3\dfrac{7}{11}\right)-4\dfrac{4}{5}\)

Câu 6 : Cho S= \(\dfrac{1}{2^2}+\dfrac{1}{3^2}+\dfrac{1}{4^2}+...+\dfrac{1}{9^2}\) . Chứng minh rằng \(\dfrac{2}{5}< S< \dfrac{8}{9}\)