1 + 3 + 4 + 7 + 11 + 18 + 29 = ?
Lưu ý : Là tính nhanh
I will T I C K all of you ! ( in 10 minute )
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= ( 3461903 + 1538097 ) x ( 29 + 71 )
= 5000000 x 100
= 500000000
có 8 số 0 ở 500000000
k mk
( 3461903 + 1538097 ) x 29 + ( 3461903 + 1538097 ) x 71 = 500000000
ht nha bạn T I C K cho mk vs
5 + 10 + 10 + 15 + 15 + 20 + 20 + 25 + 25 + 30 =?
TL:
5 + 10 + 10 + 15 + 15 + 20 + 20 + 25 + 25 + 30 =175
HT
TL :
5 + 10 + 10 + 15 + 15 + 20 + 20 + 25 + 25 + 30 =
= ( 15 + 15 ) + ( 20 + 20 ) + ( 25 + 25 ) + ( 30 + 30 ) + 5
= 20 + 40 +50 + 60 + 5
= 170 + 5
= 175
k ở ẩn danh
Nhấn ba ngón cùng lúc Ctrl và Shirft và N
TL :
Nước có thể tồn tại ở thể lỏng, thể khí ( hơi) và thể rắn. Nước ở thể lỏng và thể khí không có hình dạng nhất định. Nước ở thể rắn ( nước đá) có hình dạng nhất định.
- Sơ đồ chuyển thể của nước.
Nước có thể tồn tại ở các thể: thể rắn, thể lỏng, thể khí. Nước đều trong suốt, không có màu, không có mùi, không có vị. Nước ở thể lỏng và thể khí không có hình dạng nhất định. Nước ở thể rắn có hình dạng nhất định.
K THEO TUI Ở ẨN DANH ĐI
1.Mrs.Green (take).......has taken.............Alice to the dentist many times.
2.My sister always (wash).......washes..............her hands before meals.
3.Hurry up!The train (come)..........is coming.......in.
4.I hope it (not rain)......won't rain.............in the dry season.
5.He (sleep)..........slept..............so he didn't understand what you said.
6.Will you wait a minute while i (look).............am looking..........through the text?
7.You must tell me what you (do).......have done.................since i last saw you.
8.An economic critic often (follow)......follows............the war.
9.You (witness)...........have witnessed................many things by the time you die.
10.So far you (make)......have make..........no mistakes on this exercise.
11.What was you (do)........doing.........at 7 p.m yesterday?
12.We didn't recognize him.He (change)...........was changing........a lot.
13.He discovered to his horror that he (eat)......had eaten..........a fly.
14.Where did you (spend)....spend.............your holiday last year?
15.He (do)...........did............nothing before he saw me.
16.All of them (sing).........were singing..........when i came.
17.She constantly (invite).........invites...............me to lunch and dine with her once or twice a year.
18.They had sold all the books when we (get)......got......there.
19.Why didn't you listen while i (speak)........was speaking...........to you.
20.Where are you?-I'm upstairs.I (have).......am having.........a bath.
Put in the correct form of the verbs:
1.Mrs.Green (take). has taken Alice to the dentist many times.
2.My sister always (wash). washes her hands before meals.
3.Hurry up!The train (come) is coming .in.
4.I hope it (not rain). won't rain .in the dry season.
5.He (sleep). was sleeping so he didn't understand what you said.
6.Will you wait a minute while i (look). am looking through the text?
7.You must tell me what have you (do). done since i last saw you.
8.An economic critic often (follow).followes the war.
9.You (witness) are witnessed .many things by the time you die.
10.So far you (make).have made .no mistakes on this exercise.
11.What were you (do).doing at 7 p.m yesterday?
12.We didn't recognize him.He (change) changed a lot.
13.He discovered to his horror that he (eat). ate a fly.
14.Where did you (spend)..spend your holiday last year?
15.He (do)has done nothing before he saw me.
16.All of them (sing) were singing when i came.
17.She constantly (invite) invites me to lunch and dine with her once or twice a year.
18.They had sold all the books when we (get) got .there.
19.Why didn't you listen while i (speak). am speaking .to you.
20.Where are you?-I'm upstairs.I (have). am having .a bath.
I. Choose the most suitable tense.
1. Why (are you going to buy/ will you buy) a new mountain bike?
2. Don’t phone between 8.00 and 9.00. I’ll study/ I’ll be studying then.
3. Look out! That tree (will fall/ is going to fall)!
4. Let me know as soon as Louise (will get/ gets) here.
5. Great news! Jean and Chris (will come/ are coming) to stay with us.
6. According to this timetable, the bus (is going to arrive/ arrives) at 6.00.
7. I have a feeling that something strange (is going to happen/ is happening) in a minute.
8. The doctor says I (will have/ am going to have) a baby!
9. Can you call me at 7.00, because (I’ll leave/ I’m leaving) tomorrow.
10. If you arrive late at the sale, the best things (will go/ will have gone).
II. Give the correct form of the verbs:
1. I can’t see you on Thursday afternoon. I (visit)am visiting our Birmingham branch.
2. George (not be)won’t be back until six. Can I take a message?
3. What (you/ buy) are you going to buywith the money you won in the lottery?
4. I don’t think you (have) will have any problems at the airport.
5. (You/ take) are you going to take/Are you taking your dog with you to Scotland?
6. Can you answer the phone for me? I (lie down) am going to lie down for a while.
7. All the hotels are full. Where (we/ spend)are we going to spend the night?
8. You’d better not come in July. My mother (stay) will be staying/is staying with me then.
9. What time does your plane leave (your plane/ leave) ?
10. Leave the car here. May be the police (not/ notice) won’t notice it.
1. They have left London this month.
2. He has brought a lot of English papers.
3. She has told me about it.
4. I have got a long letter from father this week.
5. She (just) has come; she will speak to you in a minute.
6. I have been to Radio City.
7. I think the director has left the town.
8. I have painted my office.
9. We have known her since she arrived to our city.
10. I have forgotten your name.
11. He has closed the door.
12. He has done it since we left him.
13. I have given him my last penny.
14. This order has led to many misunderstandings.
15. He has written his name on my book.
16. She has bought a new umbrella.
17. He has looked my exercise over and over.
18. I have bought those books very cheaply.
19. He has worked for two months.
20. She has found a new job.
21. He has spoken very well.
22. The children have eaten the whole pudding.
23. You have read many detective stories.
24. Our team has won the first prize.
25. My little daughter has cut her finger with a knife.
Sắp xếp:
1. At 7. The film starts at 7.30.
2. All right. Where will we meet?
3. Bye. See you again at 7 o'clock tonight.
4. Yes, I'd love to. When will we meet?
5. It's me, Lan. Will you be free tonight, Mai?
6. Hello. Is it Mai?
7. OK. I will see you tonight. Don't be late. Bye
8. Yes, I will
9. Hello. This is 38945265
10. Yes. Who is this?
11. Would you like to go to the movie theater with me? There's a good film on at Lao Dong Theater.
12. We will meet in front of the ovie theater.
9 - 6 - 10 - 5 - 8 - 11 - 2 - 12 - 4 - 1 - 7 - 3
Choose the best answer
1.............. is your telephone number?
A. When B. Which C. What
2. Her birthday is ........... Friday, August 20th
A. At B. On C. In
3..............you have a test tomorrow morning?
A. Will B. Do C. Are
4. Will he be free? - ..........
A. No,he won't B. No,he dosen't C. No, he isn't
5. We will ....... our old friends next Sunday
A. To meet B. Meet C. Meeting
6........... meet at 7.00 p.m
A. Let's B. Let's go C. Let
7. Nhat ............. 9 on his next birthday
A.is B. Will C. Will be
8. I live........... my parents in the countryside
A. On B. With C. To
9. Nga lives ............ 52 Nguyen Dinh Chieu Street
A. At B. On C. In
10. Will you be free tomorrow evening ? - ..........
A. Yes, I will B. Yes, I do C. Yes, I am
11. Where will we meet? - ....... the cinema
A. In front B. Next C. In front of
12. I think she ....... the party tomorrow
A. Will enjoy B. Ẹnoy C. Ennoys
13. I will see you ......... tomorow
A. On B. O C. In
14. Her sister is out when he calls
A. Not at home B. Not C. Late
15. I will invite all of my friends ........ my birthday party
A. To B. O C. Come
16. ......... you be free to tomorrow?
A. Will B. Are C. Have
17. The book is open in front ...... her on the desk
A. Of B. To C. With
18. Will you be fr6ee on Sunday?
A. Not at home B. Not busy C. Not late
19. You will have .......... new friends soon
A. Lot of B. Lots of C. A&B
20. I hope he .......... to the party
A. Will come B. Come C. Came
72 nha bạn
\(1+3+4+7+11+18+29\)
\(=\left(29+1\right)+\left(3+7\right)+\left(11+4\right)+18\)
\(=30+10+15+18\)
\(=40+33\)
\(=73\)