So sánh: A=147.148148 và B= 148.147147
Cho mình xin cách làm
có ai bt làm bài này không hộ mình với mình đang cần gấp xin cảm ơn
3. So sánh nhất: (Nhấn mạnh theo 2 cách đã học)
a. This road/short /way/ in the city.
_______________________________________________
b. Lan/ walk/ slow / in my class.
_______________________________________________
c. Indian tea/bad/ of all.
_______________________________________________
d. Anna/ work/ simple/girl/ in the world. _______________________________________________
e. Jack/ can tell/ the stories/ humourous/ in the world.
_______________________________________________
II. Rewrite these sentences
1. This street is narrower than that one
Þ That street ……………………………………………..
Þ That street …………………………………………………
2. Linda drives more carefully than Peter
Þ Peter……………………………………………
Þ Peter…………………………………………………..
3.Your car is more convenient than mine
Þ My car ……………………………………………………..
Þ My car……………………………………………………..
4. We behave more politely than her
Þ She……………………………………………………….
Þ She ………………………………………………………
5.I cook better than my mother
Þ my mother……………………………………………………………..
Þ my mother ………………………………………………………………
6. Anna isn’t as confident as me
=> I …………………………………….
7. This book isn’t as boring as that one
Þ That book …........................................................
8. I don’t work as effectively as he does
=> He ………………………………………….
9. My bedroom isn’t so comfortable as yours
Þ Your bedroom……………………………..
10. John didn’t speak English as well as Mary
=> Mary ………………………………………….
11. Peter can dance the most gracefully in my city
=> No one………………………………………………….
=> No one………………………………………………
12. Kangaroo is the most unique animal in the world
=> No……………………………………………………..
=> No……………………………………………………….
13. No river in the world is longer than Nile
=> Nile …………………………………………………
14. No student in my class learns Maths more intelligently than John
=> John……………………………………………………………………
15. If you read many books, you will have much knowledge
→ The more …………………………………………………………………….
16. He speaks too much and people feel bored.
→ The more …………………………………………………………………….
III. Cirle the best option to complete each sentence:
1. The flower was.......... out of a single piece of valuable wood.
A. carved B. moulded
C cast D. given
2. In this town, they_____ all the frames in steel.
A. make B. have C. mould D. cast
3. She is skilled at ____ cloth.
A. giving B. weaving C doing D. carving
4. If you like, I can_____ flowers on the cushion covers for you.
A. grow B. make C. embroider D. knit
5. Is it true that you.......... this woollen hat yourself?
A. knitted B. wove C did D. carved
6. The doll has been.......... out of clay.
A. embroidered B. cast C. woven D. moulded
7. I love going to this place _____ it's the quietest place in the city.
A. so B. though C. so that D. as
8. They keep changing the decoration of the shop_______ they can attract more young people.
A. so that B. because C. although D when
9.________ he's young, she's the most famous artisan in the village.
A. When B. Although C. Whereas D. In order to
10. Do you know who's______ his pottery workshop?
A. bring out B. taking over C. passing down D. turning down
11. I've_______ the product catalogue and decided to buy this table.
A. found out B. closed down C. looked through D. lived on
12. This sports centre is so small that it cannot______the demands of local residents.
A. keep up with B. face up to C. deal about D. setup
13. When I turned up, the town hall was already_____ of teenagers.
A. full B. packed C. crowded D. jammed
14. She turned ______the new job in New York because she didn't want to move.
A. on B. down C. off D. up
15. This city has one of the most___ underground rail networks in the world.
A. efficient B. fashionable C . cosmopolitan D. fascinated
16. This laptop is much more user-friendly, but it costs________ the other one.
A. so much as B. as many as C. twice as much as D. twice as many
17. Today's cities are____than cities in previous times.
A. lots larger B. much larger C. as large D. the largest
18. After I found all the information I needed, I________the computer.
A. turned off B. switched on C. looked for D. put off
19. Japan is the__________ developed country in the world.
A. most second B. second in most C. second most D. two most
20. Factories and offices should be built in __________areas only.
A. rural B. Coastal C. culture D. urban
21. My grandfather is _____ the oldest person in my village
A. by far B. a lot C. second D. much
22. The last runner tried ____ better than the first one
A. by far B. third C. a bit C. more
So sánh :
a) (-1 phần 16)^100 và (-1 phần 12)^500
b) ( -32 )^9 và ( -18 )^13
Giúp mình giải ra một cách rõ ràng nhé! Mình đang cần gấp.
Xin cảm ơn.
so sanh 147.148148 và 148.147147
cho A=1+2+...+987 và 1233
so sánh A,B (ai làm cách thuận tiện nhất mình tick)
Ta có :
A = 1 + 2 + 3 + ... + 987
=> A = ( 987 + 1 ) . 987 : 2
=> A = 494 . 987
=> A = 487 578 < 1 860 867 = 1233 = B
Vậy A < B
Số số hạng của A là :
( 987 - 1 ) : 1 + 1 = 987 số
Tổng của A là :
( 987 + 1 ) x 987 : 2 = 487578
Ta lại có 1233 = 1860867
=> A < 1233
HOk tốt!!!!!!!
nếu như ko có ai ra cách làm thuận tiện nữa thì mình ra đáp án luôn
1+2+....+987<1000+1000+....+1000=987.1000<1000.1000=1003<1233
suy ra 1+2+....+987<1233
So Sánh A=1000^2012+2/1000^2012-1 và B=1000^2012/1000^2012-3 ( ghi cách làm giùm mình nha tks)
So sánh A và B
A = 1234567892
B = 123456788 x 123456790
Ghi rõ cách làm
ai làm nhanh, đúng mình tk cho
Ta có: B=123456788*123456790
<=> B=(123456789-1)(132456789+1)
=123456789^2-1<123456789
Hay B<A
so sánh : 3^42 và 2^81
MÌNH CẦN NGAY HÔM NAY XIN CÁC BẠN GIÚP MÌNH AI LÀM NHANH NHẤT VÀ ĐÚNG MÌNH SẼ TICK
3^42 : 2^81 = 3^:(2^2)
suy ra 3^42 < 2^81
mình đúng nhớ cho điểm đó
MIK KO HIỂU BẠN CÓ THỂ GIẢI CỤ THỂ HƠN KO
không tính giá trị hay so sánh a=37x44-11 và b=41x39+18 nhanh+đúng+cách làm thì mình tick cho
A=37x44-11 B=41x39+18
A=37x(41+3)-11 B=41x(37+2)+18
A=37x41+37x3-11 B=41x37+41x2+18
A=37x41+111-11 B=41x37+82+18
A=37x41+100 B=41x37+100
\(\Rightarrow A=B\)
\(b=\left(37+2\right)x\left(44-3\right)+18=37x44-3x37+2x44-6+18\)
\(b=37x44-111+88+12=37x44-111+100=37x44-11=a\)
so sánh
A=54.107-53/53.107+54 và B=135.269-133/134.269+135
mọi người ghi luôn cả cách làm bài hộ mình nha
vi 53/53.107 =1/107 nenA > 54.107+54 < 135.269 < B