`text{bài 3}`
`700 cm^2 = 7dm^2`
`4dm^2 = 0,04 m^2`
`2cm^2 = 0,0002 m^2`
`6m^29dm^2 = 6,29m^2`
`3300dm^2 = 33m^2`
`8000cm^2 = 0,8m^2`
`900dm^2 = 9m^2`
`1cm^2 = 0,01dm^2`
`80000cm^2 = 8m^2`
Đáp án:
Giải thích các bước giải:
3 .
a) 700cm2 = 7dm2
b) 4dm2 = 0,04m2
2cm2 = 0,0002m2
c) 6m2 9dm2 = 6,09m2
3300dm2 = 33m2
8000cm2 = 0,8m2
900dm2 = 9m2
1cm2 = 0,01dm2
80000cm2 = 8m2
câu c,cho x+y+z=0.cmr:x ³+y ³+z ³=xyz
Exercise 6: Put the verbs in brackets into the past simple or the present perfect 1.A: __________ (you/ ever/ meet) anyone famous? B: Yes, last summer I __________ (sit) next to Brad Pit on a plane to LA. 2.A: How long ago __________ (you/ start) painting? B: Ten years ago. I __________(recently/ complete) a painting that the National Gallery __________ (ask) me to do a year ago. 3. A: Last night, I __________(see) the latest James Bond film. B: Oh, I__________(already/ see) it twice. 4. A: Do you know that Mrs Janet __________(work) here for sixteen years? B: I thought she__________(start) working here ten years ago. 5. I (invite) __________them to my birthday party yesterday, however, they (not come) _________. 6. My brother (begin) __________ looking for a job in January. 7. Timson (make) __________13 films and I think her latest is the best. 8. She (be) ____________ extremely quiet since her husband died. 9. Jane (leave)____________ just a few minutes ago.
Bài 1 : Viết số thích hợp vào ô trống: 7km 47 m = km 46dm=…. m…dm 29m 34 cm = cm 1372 cm = ….m….cm 1 cm 3mm = mm 4037m = …km…m Bài 2: a. 3 4/5 + 2 3/6 b. 3 4/5 - 2 3/5 c. 93/100 - ( 13/100 + 17/100) d. 7/(8 ) : 2 e. 4 x 3/11
Giúp mik câu 3 vs ạ cần gấp hứa cho ctljn
EM cần anh chị giải dùm nhanh nhất với ạ ,em cảm ơn !!!
Tính nhanh A=2/1.3+2/3.5+...+2/99.101
giúp mình vs ạ, mĩnh sẽ vote 5* và ctlhn
241. Ba said, "Why don't we stop eating chicken to avoid being infected with bird -Ba suggested that chicken shouldn't... 242 Let's break for lunch," -John auggested that. 230. Would you like to have lunch with me on Sunday?" --Lan invited mo 231. Would you like a cup of tea?" Jana offered John. 232 Why don't we discuss it over a coffee? -Tom suggested.
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Exercise 5: Put the verbs in brackets into the past simple or the present perfect I (1) _____________ (be) a ski instructor for many years now. I (2) _______ (take up) the sport when I (3) _________ (be) at school. I still remember the first time I (4) ______ (try) to ski. I (5) _________ (slip) on the ice and (6) ________ (break) my ankle. Thankfully, I (7) _______ (not/ have) a serious accident since then. Last year, I (8) ______ (try) ice-skating for the very first time. I (9) ________ (slip) on the ice rink a couple of times since then but I (10) ________ (not/ break) anything. Two years ago, I (11) _______ (take) snowboarding lessons. I (12) _______ (not/ like) it because I (13) ____ (find) it a little dangerous. I (14) ________ (not/ play) ice - hockey yet. There’s a game tomorrow. I can’t wait to go!
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