Số lớn là: (240+60):2=150

Số bé là: 240-150=90

Đ/S:.....

Đoạn đường từ Đông Hà (Quảng Trị) đến Thành phố Hồ Chí Minh dài 1080 km. Đoạn đường đó trên bản đồ tỉ lệ 1/2.250.000 dài

A. 18cm

B. 28 cm

C. 38 cm

D. 48,0 cm

Đặt câu hỏi cho từ in đậm

1.He bought this hat at the shop over there

What did he buy at the shop over there?

2.I need my phone to phone my parents

Whose phone do you need to phone your parents?

3.I saw her last night

When did you see her?

4.Her neighbor gave her a nice dress

Who did her neighbor give a nice dress?

5.My father was in Ha Noi last month

When was your father in Ha Noi?

6.He traveled to Nha Trang by train

Who traveled to Nha Trang by train?

7.She teaches English in the high school

What does she teach in the high school?

8.Nam didn't leave home yesterday because it rained

Why didn't Nam leave home yesterday?

9-25=(7-x)-(25+7)

=> 9-25 =7-x-25-7

=> 9=7-7-25+25-x

=> 9=(7-7)-(25-25)-x

=>9=0-0-x

=>9=-x

=>x=-9

Vậy x=-9

1. is 6. classrooms/on

2. the 7. brushes

3. in 8. goes

4. students 9. time

5. grade/am 10. big

Hoàn thành các câu thứ hai sao cho nghĩa không thay đổi

1. How much is a bowl of noodles ?

How much does a bowl of noodles cost?

2. What is the price of a dozen of eggs?

How much is a dozen of eggs?/ does a dozen of eggs cost?

3. This box has twelve packets of tea

There are twelve packets of tea in this box.

4. How much does a box of chocolate cost?

What is the price of a box of chocolate?

5. How many bananas do you want ?

How many bananas would you like?

6. How old is Lan?

What is Lan's age?

7. There is one pen in the box

The box has one pen.

8. His lips are thin

His lips aren't full.

Ủa nhà Trần thay nhà Lý mà bạn

a, \(A=2+2^2+2^3+....+2^{60}\)

\(=\left(2+2^2\right)+\left(2^3+2^4\right)+....+\left(2^{59}+2^{60}\right)\)

\(=2.\left(1+2\right)+2^3.\left(1+2\right)+....+2^{59}.\left(1+2\right)\)

\(=2.3+2^3.3+....+2^{59}.3\)

\(=3.\left(2+2^3+...+2^{59}\right)⋮3\)(đpcm)