dấu hiệu chia hết cho 4;7;8;6

Gọi số phần thưởng được chia nhiều nhất là y ( phần , x thuộc N^* )

Ta có 36 chia hất cho y ; 24 chia hết cho y 

Mà y nhiều nhất 

Ta có : 36 = 2² . 3² ; 24 = 2³ .3

Suy ra : ƯCLN_(36;24) =2² . 3 = 4.3= 12

Suy ra y = 12 ( thoả mãn )

Vậy có thể chia nhiều phần thưởng nhất thành: 12 phần 

3^x-1. 7 + 3^x-1 . 2 = 9

P = 2+2²+2³+ ... +2⁶⁵ + 2⁶⁶ . Chứng minh P chia hết cho 7 ? Vì sao .

VIII. Write a short paragraph about 50 words about your best friend.

You should base on some suggestions below:

- Who is your best friend?

- What does he/she look like?

- What is he/she like?

- What’s his/her favorite subject?

- Why do you like him/her?

Name: ………… Appearance: tall/ short/ slim, short/long hair, big/small brown eyes… Personality: clever/ kind/ funny/ friendly… Favourite subject: Maths/ English/ History/ literature…. Hobbies: listen to music, / watch cartoon on TV….

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

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

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

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

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

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

THE END

VII. Rewrite the following sentences based on the given words

1. The bedroom has a big wardrobe.

→There is……………………………………………………………………………………

2. There are four windows and two doors in our class.

→ Our class has………………………………………………………………………………

3. My mother’s hair is long and straight.

→ My mother has…………………………………………………………………………….

4. Her hair is black and short.

→ She has……………………………………………………………………………………

5. Our house has a fridge and it’s in the kitchen.

→ Our house’s fridge………………………………………………………………………

6. I have a smartphone and it’s on the table.

→ My smartphone ………………………………………………………………………….

7. My brother has a straight nose.

→ My brother’s………………………………………………………………………………

8. Our classroom has 22 sets of tables and chairs.

→ There………………………………………………………………………………………