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30 tháng 1 2017

15x150+15x400+150=8400

tk nha

ai tk mk

mk tk lai

30 tháng 1 2017

15x150+15x400+150

= 15x150+15x400+15x10

= 15x( 150+400+10)

=15x560

=8400

k nhé

22 tháng 6 2015

a)7+10+13+16+...+37

=(7+37)+(10+34)+...+(19+25)+22(4 cặp)

=44.4+22

=198

b)2+3+4+...58

=(2+58)+(3+57)+...+(29+31)+30(28 cặp)

=60+60+...+60+30

=60.28+301710

c)75x18+75.52+15x150

=75.18+75.52+15.2.75

=75(18+52+15.2)

=75.(18+52+30)

=75.100

=7500

22 tháng 6 2015

a​,b, dãy số viết theo qui luật cơ bản rồi. c,75x17+75x52+15x150=75x17+75x52+30x75=75x(17+52+30)=75x99=...

18 tháng 3 2017

150+150+150+150+150=750

k mình nha

18 tháng 3 2017

= 750 nha

27 tháng 3 2017

150x5=750

18 tháng 3 2017

=750

kick mình nha

28 tháng 12 2023

150 x 1 + 150 x 2 + 150 x 3 +...+ 150 x 99 + 150 x 100

= 150 x ( 1 + 2 + 3 + ... + 99 + 100 )

= 150 x 5050 = 757500

28 tháng 12 2023

  B = 150 x 1 + 150 x 2 + 150 x 3 + ... + 150 x 99 + 150 x 100

B = 150 x (1 + 2 + 3+... + 99 + 100)

Đặt:  A = 1 + 2 + 3 +...+ 100

Dãy số trên là dãy số cách đều với khoảng cách là:

         2 - 1 = 1

Số số hạng của dãy số trên là:

      (100 - 1) : 1 + 1 =  100 (số hạng)

A = (100 + 1) x 100 : 2 = 5050

B = 150 x 5050

B = 757500 

 

 

 

 

12 tháng 2 2017

1100 tk mk nha thanks mk sẽ tk lại

12 tháng 2 2017

150x4+500

=600+500

=1100

Ai k mình 3 k k lại!

Giúp mình đi!

alo alo món tick xào đang chờ các bn đâyQuestion 2. If we _____ wasting water, there will be a shortage of freshwater in a few decades.A. turn onB. look forC. look afterD. go onQuestion 3. My best friend's birthday is _____ 16th September.A. onB. inC. atD. sinceQuestion 4. Asian people eat rice. Rice _____ in many parts of Asia.A. grownB. is grownC. have grownD. has grownQuestion 5. She didn't pass her exam _____ she studied lazily.A. soB. althoughC. becauseD. butQuestion 6. Children...
Đọc tiếp

alo alo món tick xào đang chờ các bn đây

Question 2. If we _____ wasting water, there will be a shortage of freshwater in a few decades.

A. turn on

B. look for

C. look after

D. go on

Question 3. My best friend's birthday is _____ 16th September.

A. on

B. in

C. at

D. since

Question 4. Asian people eat rice. Rice _____ in many parts of Asia.

A. grown

B. is grown

C. have grown

D. has grown

Question 5. She didn't pass her exam _____ she studied lazily.

A. so

B. although

C. because

D. but

Question 6. Children shouldn't be allowed _____ time ______ computer games.

A. waste - to play

B. wasting - playing

C. to waste - to playing

D. to waste - playing

Question 7. Most people believe that school days are the _____ days of their life.

A. better

B. best

C. more best

D. good

Question 8. We _____ a big party for Debbie's birthday.

A. annoyed

B. arranged

C. arrived

D. appeared

Question 9. I think scientists should not be allowed to perform _____ on animals. It's cruel.

A. experiences

B. duties

C. experiments

D. miracles

Question 10. Jennifer was _____ when she realised that there was a hole in her pants.

A. embarrassed

B. depressed

C. confident

D. pleasant

Question 11. The roots take in nutrients and water from the _____.

A. soil

B. leaves

C. stem

D. flower

Question 12. What is a dinosaur?

A. a kind of animal that lives in nature today

B. a kind of animal that lives only in a zoo today

C. one kind of animal that lived 50 years ago

D. one kind of animal that lived millions of years ago

Question 13. Day and night are caused by _____.

A. Earth's spin

B. the way sunlight hits the Moon

C. the Sun's path around the Earth

D. the shape of the Earth

Question 14. Two friends are talking about their upcoming summer holiday.

Jack: "I'm going to take a five-day trip to Singapore."

Jill: "_____"

A. The same to you.

B. No, of course not.

C. You're welcome.

D. Oh, really? Have a great trip!

Question 15. The classmates are planning to take a field trip.

The monitor: "Why don’t we visit Hue Citadel this weekend?

Jean: "_____. We can learn about Vietnamese history."

A. No, thanks

B. No, let’s do that

C. OK, I don’t like

D. That’s a good idea

Question 16. Jenny: "Congratulations on your winning the first prize at the talent contest!"

Tom: "______"

A. You’re welcome.

B. Not at all.

C. Yes, certainly.

D. That’s very kind of you

5
23 tháng 6 2021

Question 2. If we _____ wasting water, there will be a shortage of freshwater in a few decades.

A. turn on

B. look for

C. look after

D. go on

Question 3. My best friend's birthday is _____ 16th September.

A. on

B. in

C. at

D. since

Question 4. Asian people eat rice. Rice _____ in many parts of Asia.

A. grown

B. is grown

C. have grown

D. has grown

Question 5. She didn't pass her exam _____ she studied lazily.

A. so

B. although

C. because

D. but

Question 6. Children shouldn't be allowed _____ time ______ computer games.

A. waste - to play

B. wasting - playing

C. to waste - to playing

D. to waste - playing

Question 7. Most people believe that school days are the _____ days of their life.

A. better

B. best

C. more best

D. good

Question 8. We _____ a big party for Debbie's birthday.

A. annoyed

B. arranged

C. arrived

D. appeared

Question 9. I think scientists should not be allowed to perform _____ on animals. It's cruel.

A. experiences

B. duties

C. experiments

D. miracles

Question 10. Jennifer was _____ when she realised that there was a hole in her pants.

A. embarrassed

B. depressed

C. confident

D. pleasant

Question 11. The roots take in nutrients and water from the _____.

A. soil

B. leaves

C. stem

D. flower

Question 12. What is a dinosaur?

A. a kind of animal that lives in nature today

B. a kind of animal that lives only in a zoo today

C. one kind of animal that lived 50 years ago

D. one kind of animal that lived millions of years ago

Question 13. Day and night are caused by _____.

A. Earth's spin

B. the way sunlight hits the Moon

C. the Sun's path around the Earth

D. the shape of the Earth

Question 14. Two friends are talking about their upcoming summer holiday.

Jack: "I'm going to take a five-day trip to Singapore."

Jill: "_____"

A. The same to you.

B. No, of course not.

C. You're welcome.

D. Oh, really? Have a great trip!

Question 15. The classmates are planning to take a field trip.

The monitor: "Why don’t we visit Hue Citadel this weekend?

Jean: "_____. We can learn about Vietnamese history."

A. No, thanks

B. No, let’s do that

C. OK, I don’t

D. That’s a good idea

Question 16. Jenny: "Congratulations on your winning the first prize at the talent contest!"

Tom: "______"

A. You’re welcome.

B. Not at all.

C. Yes, certainly.

D. That’s very kind of you

# Học tốt #

22 tháng 1 2017

150 . 150 . 150 =

22500 . 150 =

3375000

hoac

150 . 150 . 150 =

150^3 =

3375000

22 tháng 1 2017

3375000

20 tháng 1 2017

x + 150 = 150 + 150

x + 150 = 300

x = 300 - 150

x = 150 

20 tháng 1 2017

x + 150 = 150 + 150

x + 150 = 300 

          x = 300 - 150

          x = 150

tk mk mk tk lại

Viết lại câu sang cách nói thứ 2 sao cho nghĩa không đổi1. What about having a picnic on Sunday?Let’s …………………………………………………………………………………2. How about taking some photos?Why don’t we …………………………………………………………………….?3. Let’s have some cold drinks.How about ………………………………………………………………………..?4. Why don’t we go to the post...
Đọc tiếp

Viết lại câu sang cách nói thứ 2 sao cho nghĩa không đổi

1. What about having a picnic on Sunday?

Let’s …………………………………………………………………………………

2. How about taking some photos?

Why don’t we …………………………………………………………………….?

3. Let’s have some cold drinks.

How about ………………………………………………………………………..?

4. Why don’t we go to the post office?

What about ………………………………………………………………………?

5. Your hair is long.

You ………………………………………………………………………………

6. That boy’s legs are strong.

That boy …………………………………………………………………………

7. That child’s eyes are lovely.

That child …………………………………………………………………………

8. Their house is old.

They ………………………………………………………………………………

9. Her school bag is new.

She ………………………………………………………………………………

10. His test is awful.

He ………………………………………………………………………………

11. Her nose is small.

She ………………………………………………………………………………

12. How much is your book?

How much ………………………………………………………………………?

13. How much are two boxes of chocolates?

How much ………………………………………………………………………?

14. How much do cans of peas cost?

How much ………………………………………………………………………?

15. How much does the red box cost?

How much ………………………………………………………………………?

16. How is the weather in HCM city?

What ……………………………………………………………………….……?

17. What is the weather like in Vietnam?

How ………………………………………………………………………..……?

18. How is the weather in Spring?

What ……………………………………………………………………………?

19. What food do you like best?

What is …………………………………………………………………………?

20. What sports does she like best?

What is …………………………………………………………………………?

21. He likes apples best.

His ………………………………………………………………………………

22. We like pink and blue best.

Pink and blue are ………………………………………………………………

23. What subject does he like best?

What is …………………………………………………………………………

24. They like badminton best.

Badminton is ……………………………………………

2. Điền giới từ phù hợp vào chỗ trống

1. What are you going to do …………………………..the weekend?

2. What are we going to do …………………………..the vacation?

3. We are going …………………………..vacation.

4.………………………….. Sunday mornings, we go fishing.

5.………………………….. the morning, we often do morning exercises.

6. We are going to camp …………………………..three days.

7. What are you going to do…………………………..your free time?

8. He is going to stay…………………………..his friend’s house…………………………..a week.

9. He is going to stay …………………………..his uncle and aunt.

10. We are going to stay …………………………..a hotel…………………………..Thanh Hoa.

11.…………………………..the winter, we usually play basketball.

12. What do you do …………………………..the spring?

13. What’s the weather like…………………………..March?

14. He wants strong boots because he often goes walking…………………………..the mountains

15. They sometimes go sailing …………………………..the fall.

16. She often goes swimming …………………………..the summer.

17. How often do you late…………………………..school?

18. How often do you help your Mom…………………………..her housework?

19. We have Math, English and Music ………………………….. Tuesday and Thursday.

20. We are going to see a movie ………………………….. Sunday evening

3. Chia động từ trong ngoặc cho hợp thì

1. The girls _________________ (skip) at the moment.

2. Nam ________________ his bike at present. (ride).

3. We’d like _________________ (go) swimming. We don’t like going__________ (jog)

4. Mai never _______________ (stay) up late.

5. He ____________ (brush) his teeth often.

6. Lan always _______________ (do) her tests carefully.

7. He wants _______________ (travel) around the world.

8. Minh’d like _______________ (walk) in the rain.

9. Now Mr. Jones ______________ T.V. (not, watch)

10. What about ______________ (have) some coca cola?

11. What (you, watch) _________________________________ now?

12. What about______________ (eat) some rice now?

13. I ______________ (play) sports now. I love going_____________ (play) sports.

14. Do you want ____________some food for me?(buy)

15. The girls _____________ (jog) now.

16. They ________________ (play) soccer at the moment.

17. (She, take) _______________________ some photos at present?

18. She________________ to eat fried rice. (not, want)

19. They _____________ (swim) at present

20. Would you like ______________ some food? (buy)
làm hộ mik ai xng mik tick 3 cái

1
16 tháng 4 2022

1. let's have a picnic on Sunday

2. why don't we take some photos?