Số bị chia sau khi viết sai là: 980x25+4=24504

Số bị chia đúng là: 24054

Singapore is an island city of about three million people. It’s a beautiful city with lots of parks and open spaces. It’s also a very clean city.
Most people live in high-rise flats in different parts of island. The business district is very modern with lots of high new office buildings. Singapore also has some nice older sections. In Chinatown, there are rows of old short houses. The Government buildings in Singapore are very beautiful and date from the colonial days.
Singapore is famous for its shops and restaurants. There are many good shopping centers. Most of the goods are duty free. Singapore’s restaurants sell Chinese, Indian, Malay and European food, and the prices are quite reasonable.

1. do -> are

2. fell -> feel

3. bỏ for

1. There are six rooms in my house.

2. She takes care of sick people.

3. Are you interested in listening to music ?

4. What does your father do ?

The teacher wishes his students would try to learn the lessons good at home.

1. There are five rooms in Lan's house.

2. Mai's sister is not as intelligent as her.

3. Don't forget to send a letter to me.

4. I spend two hours each day doing the housework.

5. Hoa studies hard.

2501\(\notin\)A

2134\(\in\)A

Ta có sơ đồ:

Số bé:  |-------|      }   Hiệu: 55

Số lớn: |-------|-------|-------|-------|-------|-7-|             

                Số bé là:

                 ( 55 - 7 ):(5 - 1) = 12

                Số lớn là:

                   12 + 55 = 67

Cho hình chóp S.ABCD có đáy ABCD là hình chữ nhật, AB = a, AD = 2a. Tam giác SAB đều và nằm trong mặt phẳng vuông góc với đáy. Thể tích của khối chóp S. ABCD bằng

1 C

2 B

3 A

4 B

5 C

6 A

7 B

8 A 

9 A

10 B