cái này là toán lớp 6 mak!câu c có số nguyên âm nè!!!!!!!!!!

Chịu nha!!!!Mình mới lớp 5 thôi.Sorry nha

b,(1+2+3+.....) *(25*3-75) +75=(1+2+3+...)*(75-75)+75=(1+2+3+....)*0+75=0+75=75

Bài 2 :

23,56 x 8,9 + 211,7 : 5,8

= 209,684 + 36,5

= 246,184

Bài 3 :

2340               567              0,0048                 67800

0,347             0,0569          0,03478              565

Bài 2 :

23,56 x 8,9 + 211,7 : 5,8

= 209,684 + 36,5

= 246,184

Bài 3 :

2340               567              0,0048                 67800

0,347             0,0569          0,03478              565

5:

a: Số đoạn thẳng tạo thành là: 100*99/2=4950(đoạn)

b: \(B=\left(1-\dfrac{1}{2}\right)\left(1-\dfrac{1}{3}\right)\cdot...\cdot\left(1-\dfrac{1}{2022}\right)\left(1+\dfrac{1}{2}\right)\cdot\left(1+\dfrac{1}{3}\right)\cdot...\cdot\left(1+\dfrac{1}{2022}\right)\)

\(=\dfrac{1}{2}\cdot\dfrac{2}{3}\cdot...\cdot\dfrac{2021}{2022}\cdot\dfrac{3}{2}\cdot\dfrac{4}{3}\cdot...\cdot\dfrac{2023}{2022}\)

=1/2022*2023/2

=2023/4044

Nam and Phong are best friend, but Minh is Phong neighbour. One day, three of them were in the garden that was very near to their house. Minh is a very shy and clever guy, so he was reading his book and sat on the grass while Nam and Phong were playing basketball. Both of them were a very successful . After a will, Phong threw the ball to Minh and invited him to join both of them. After Minh made up his mind, he joined them immediately. They taught him how to play basketball. And soon, they became best friends, and often plays basketball together.

.

Reorder the words to make sentences :

1. English cartoon on TV/ practise listening/ Kim/ by watching/.

=>Kim practises listening by watching English cartoon on TV.

2. to her friends/ learn to write/ Lan/ by writing emails/.

=>Lan learn to write by writing emails to hẻ friends.

3. because/ to become an English teacher/ Hoa/ she want/ learn English.

=> Hoa learns English because she wants to become an English teacher.

4. English stories/ by reading/ learns to read/ Tuan

=> Tuan learns to read by reading English stories.

.

.

.

Tick Cho Mình Nha!

Chúc Bạn Học Tốt!

1. Kim practises listening by watching English cartoon on TV
2. Lan learns to write by writing emails to her friends
3. Hoa learns English because she wants to become an English teacher
4. Tuan learns to read by reading English stories

Reorder the words to make sentences

1. English cartoon on TV/ practise listening/ Kim/ by watching/.

Kim practise listening by watching English cartoon on TV

2. to her friends/ learn to write/ Lan/ by writing emails/.

Lan learn to write to her friend by writing emails.

3. because/ to become an English teacher/ Hoa/ she want/ learn English.

Hoa learns English because she wants to become an English teacher.

4. English stories/ by reading/ learns to read/ Tuan

Tuan learns to read by reading English story.

#Choo

2.

1. A: How do you practise speaking English?

B: I speak English with my friends every day.

2. A: How do you learn English vocabulary?

B: I write new words and read them aloud.

3. I learn English because. I want to talk with my foregn friends.

2.

1, A: How do you practice speaking English?

B: I speaks English with my friends every day.

2, A: How do you learn English vocabulary?

B: I write new words and read them aloud.

3, I learn English because I want to talk with my foregn friends.

XIn lỗi bạn phần một tớ không hiểu nên không biết làm thế nào!

1. (hong hiểu)

2.

1. A: How do you ....practise.. speaking English?

B: I ......speak.... English with my friends every day.

2. A: .....How.... do you learn English vocabulary?

B: I ....write.... new words and read them aloud.

3. I learn English ....because...... I want to talk with my foregn friends.

speak - write - because

1, speaking 

2, foreign friends

3, subject

4,on

5,speaks

6,words 

7, prace 

k nha bạn

7. prace 

Đúng ko bạn ?

prace xin lỗi mình bấm nhầm