abc=bc83

a*100+bc=bc*3

a*100=bc*2

a*50=bc=>bc=50 và a=1

vậy abc =150

Có 10 số,đúng đấy

bàn tròn=> bàn ko méo=> mèo ko có

vì ko có mèo nên bà quay về phải ko

k mk nhé

So do co so hang tram bang chu so hang don vi

Ta thu dat hang tram va don vi la 9a9 thi hang chuc se la:

26 - (9+9)=8

Ta duoc so co 3 chu so va dat yeu cau cua de toan

Rewrite

1. What is the prize of this BTS schoolbag?

-> How much is ....this BTS schoolbag..?

2. How much does this CD of EXO band cost?

-> What is …the prize of this CD of EXO band cost.?

3. How much is the beautiful shawl of the Thai women?

-> How much does……the beautiful shawl of the Thai women cost….?

4. How long have Ha Nhi people lived in Lai Chau?

-> When …have Ha Nhi people lived in Lai Chau……….?

5. Why do some ethnic people build the communal house?

-> What is ……reason of some ethnic people build the communal house……….?

6. When did you buy these costumes of Bahnar?

-> How long……did you buy these costumes of Bahnar……?

7. What did you buy two cinema tickets for?

-> Why did ……you buy two cinema tickets..?

8. Would you mind opening all the windows?

-> Could you ……open all the windows…..?

9. Who do these beautiful ornaments belong to?

-> Whose .......... beautiful ornaments are these.........?

10. Will you show me the differences between two pictures?

-> Would you mind ……showing me the differences between two pictures……….?

11. Whose costumes are these?

-> Who do …… costumes are these belong to……….?

12. How about going to the Thai people’s village?

-> Why don’t we ………go to the Thai people’s village……..?

13. What is the distance between your house and your school?

-> How far…… is the distance between your house and your school….?

14. What is your job?

-> What ……do you do…….?

15. Do they visit the tribal villages in Sa Pa?

-> They …visit the tribal villages in Sa Pa, don't they ………?

16. They can cook five-colour sticky rice in this festival, can’t they?

-> Can …they cook five-colour sticky rice in this festival….?

17. How high is the Mount Everest ?

-> What is……the height of the Mount Everest….?

18. How long has Tung visited The Central Highland?

-> When ……has Tung visited The Central Highland……….?

19. What is length of the Red River?

-> How long ……is the Red River……………………….?

20. How far is it from Lai Chau province to Ha Giang province?

-> What is ……the distance from Lai Chau province to Ha Giang province………..?

Bác Duy ra đố hóc ghê
Dùng thơ đố toán, em mê bác rồi!!!!
Em lỡ hóng hớt vào coi
Chã nhẽ chỉ ngó xong rồi đi ra...

Gọi tuổi chị là chữ A
Tuổi em là X, chú là chữ B
Tích ABX theo đề...
... bằng sáu trăm chẵn, không hề có dư
BA bằng một năm mư (150)
Ta dùng phép thế từ từ tính ra
Đây là bài toán lớp ba
Ai mà chẳng biết bốn là tuổi em
Bây giờ ta nhớ lại xem
Tích B và X tròn trèm một trăm
Suy ra tuổi chú hai lăm
Tuổi của cô chị chỉ tầm sáu thôi

Câu đõ em đã giải rồi.
Bác Duy mau ghé vào coi thế nào... 

1. There are many chairs in the kitchen

The kitchen have many chairs

2.Nam lives in the city

Nam doesn't.......live in the countryside............

3.I don't have a bookshelf in my bedroom.

There......isn't a bookshelf in my bedroom........

4.There are four people in my family : my parents , my brother and me

I live....with four people in my family : my parents , my brother and me.....

5.I don't watch TV in any other rooms but the living room.

I only...watch TV in the living room. ..