Những cánh diều ấy bay cao trên trời

II

3. Study

4. Country

B

2. bicycle

1. Serve the pancake with some vegetables

2. Have you ever been to an art gallery

3. There isn't any milk left

4. Water puppetry is performed in a pool

5. Life in Viet Nam is different from life in England

6. If people recycle more , there will be less pollution 

7. Minh has collected stamps since he was a child

8. Tom and Mary want two glasses of water

9. He doesn't want any eggs but he wants some cheese

a)

= [316 - (100 + 16)] : 8 - 24

= [316 - 116] : 8 - 24

= 200 : 8 - 24

= 25 - 24

= 1

b)

= 4.25 - 81 : 9 + 25.3 - 18 : 9

= 100 - 9 + 75 -2

= 91 + 75 - 2

= 166 - 2

= 164

c)

= 5\(^2\) + 4.27 - 1

= 25 + 108 - 1

= 133 - 1

= 132

d)

= 2\(^3\) + (-15) + 1

= 8 + (-15) + 1

= -7 + 1

= -6

Ta có:

11 = 11

9 = 3\(^2\)

⇒ BCNN (11,9) = 11. 3\(^2\) = 99

0

Linh tinh >:<

Bài 33
a) (62\(-\)81) \(-\)(12\(-\)59\(+\)9)

= 62\(-\)81\(-\)12\(+\)59\(-\)9

= (62\(-\)12)\(+\)(59\(-\)9)\(-\)81

= 50\(+\)50\(-\)81

= 100\(-\)81

= 19

b) (\(-\)75)\(+\)329\(+\)(\(-\)25)

= [(\(-\)75)\(+\)(\(-\)25)]\(+\)329

= \(-\)100\(+\)329

= 229

c) 32\(-\)34\(+\)36\(-\)38\(+\)40\(-\)42

= (32\(-\)42)\(+\)(\(-\)38\(+\)40)\(+\)(36\(+\)34)

= \(-\)10\(+\)2\(+\)70

= (70\(-\)10)\(+\)2

= 60\(+\)2

= 62

d) 92\(-\)(55\(-\)8)\(+\)(\(-\)45)

= 92\(-\)55\(+\)8\(+\)(\(-\)45)

= (92\(+\)8)\(+\)[(\(-\)55)\(+\)(\(-45\))]

= 100\(+\)(\(-\)100)

= 0

C

39. Liz hasn't sent us a letter since she returned USA.

40. Mr. John never allows his daughter to swim in the river with her friends.