Thực hiện phép tính (bằng cách hợp lý nếu có thể)

a) \(1\dfrac{4}{23}+\dfrac{5}{21}-\dfrac{4}{23}+0,5+\dfrac{16}{21}\)

b) \(\dfrac{3}{7}.19\dfrac{1}{3}-\dfrac{3}{7}.33\dfrac{1}{3}\)

c) \(9.\left(-\dfrac{1}{3}\right)^3+\dfrac{1}{3}\)

d) \(15\dfrac{1}{4}:\left(-\dfrac{5}{7}\right)-25\dfrac{1}{4}\left(-\dfrac{5}{7}\right)\)

Tìm a,b,c biết:

\(\dfrac{a}{3}=\dfrac{b}{4};\dfrac{b}{2}=\dfrac{c}{5}\)và a-c+b=3

a) Tìm hai số x và y, biết: \(\dfrac{x}{y}=\dfrac{9}{11}\) và x+y=60

b) Cho 7x=4y và y-x=24. Tính x và y

Tìm x:

a) \(\dfrac{1}{2}+\dfrac{2}{3}x=\dfrac{1}{4}\)

b) \(2\dfrac{2}{3}:x=1\dfrac{7}{9}:0,02\)

c) \(x^x-x+1=1\)

d) \(5-\left|3x-1\right|=3\)

Tính 

a) \(\dfrac{13}{50}.\left(-15.5\right):\dfrac{13}{50}.84\dfrac{1}{2}\)

b) \(\dfrac{\left(-0,7\right)^2.\left(-5\right)^3}{\left(-2\dfrac{1}{3}\right)^3.\left(1\dfrac{1}{2}\right)^4.\left(-1\right)^5}\)

\(4.\left(-\dfrac{1}{2}\right)^3-2.\left(-\dfrac{1}{2}\right)^2+3.\left(-\dfrac{1}{2}\right)+1\)

Tính

Điền vào chỗ trống với từ thích hợp để hoàn thành câu dựa vào những từ cho sẵn dưới đây:

1.      My friend can speak three                                - English, Chinese and French.

2.      I usally play                          with my younger brother in my free time. We have a lot of fun.

3.      These carved egg-shells are very                          .

4.      My grandparents like planting and taking care of trees and flowers. They love

                         a lot, they can spend hours in the garden.

5.      My children like                              of cars, buildings, and robots.

6.      My father started carving                          three years ago.

7.      Bát Tràng is famous for                          .

8.      My brother enjoys                        _ wood because it develops his imagination and trains his patience.

9.      He always gets good                          at school because he studies very hard.

10.   In the winter, we usually go                          in mountains.

Choose the correct answer to complete each of the sentences.

16. Mr Brown______ reading books a lot because he finds this hobby interesting.

A. enjoy B. don’t enjoy C. enjoys D. doesn’t enjoys

17. A: I’ve got a headache.

B: Have you? Wait there and I ______an aspirin for you.

A. will get B. get C. have got D. am getting

18. They ______cleaning the floor but we love cleaning the floor.

A. hate B. love C. hates D. Loves

19. The earth ______the sun once every 365 days.

A. circle B. circles C. will circle D. will circles

20. I______reading books interesting because I can know a lot of cultures in

the world.

A. think B. say C. tell D. find

21. Ann finds playing computer games______ because it is waste of time.

A. exciting B. easy C. boring D. interesting

22. My mother ______to stay with US next weekend.

A. come B. comes C. will come D. will comes

23. A: I don’t know how to do this exercise.

B: Don’t worry. I ______you.

A. will help B. help C. won’t help D. don’t help

24. Elena often ______up early and does morning exercise in the garden.

A. get B. will get C. getting D. gets

25. In the future, Nick______ mountains in other countries.

A. climb B. will climb C. climbing D. climbs

Choose the sentence which is closet in meaning to the sentence above.

41. My brother likes listening to pop musiC.

A. My brother is interesting in listening to pop musiC.

B. My brother is interesting on listening to pop musiC.

C. My brother is interested in listening to pop musiC.

D. My brother is interested on listening to pop musiC.

42. It is very challenging for someone to climb the mountain alone.

A. Someone find climbing the mountain alone challenging.

B. Someone finds climbing the mountain alone challenging.

C. Someone finds it is challenging to climb the mountain alone.

D. Someone find it challenging to climb the mountain alone.

43. This is the first time I have watched “Iron man ”

A. I watched “Iron man ” ago.

B. I have watched “Iron man ” before.

C. I have ever watched “Iron man ” before.

D. I have never watched “Iron man ” before.

44. Ann thinks arranging flowers is much more interesting than bird-watching.

A. Ann thinks watching birds is more interesting than arranging flowers.

B. Ann doesn’t think arranging flowers is much more interesting than bird-watching.

C. Ann doesn’t think bird-watching is as interesting as arranging flowers.

D. Ann thinks arranging flowers and bird-watching are very interesting.

45. Phong started to collect old coins five years ago.

A. Phong has collected old coins for five years.

B. Phong has started to collect old coins for five years.

C. Phong likes collecting old coins.

D. Phong collected old coins five year ago.

Find a mistake in each sentence below

26. My teacher finds teach hard but he loves working with children

                           A         B                          C                    D

27. He enjoy fishing because it is interesting.

A B C D

28. When I have free time, I will go swimming.

A B C D

29. If you have a lot of coins, stamps, toys, bottles or dolls, your hobby is painting.

A B C D

30. There are many reasons why it is importance to have a hobby

A B C D