A. Mum: OK, but you shouldn't run down the stairs.    (A)

B. Mum: Hey, Mike. Don't take your baby sister out on the balcony.   (1) 

C. Mike: OK, Mum, I won't do that again. What about walking her in the garden?    (4)

D. Mum: Because she may fall down.    (3)

E. Mike: Why shouldn't I take her there?     (2) 

F. Mike: OK, Mum.     (6) 

`16 xx 102 + 24 xx 98 + 48 xx 17`

`= 16 xx 3 xx 34 + 24 xx 2 xx 49 + 48 xx 17`

`= 48 xx 34 + 48 xx 49 + 48 xx 17`

`= 48 xx (34 + 49 + 17)`

`= 48 xx 100`

`= 4800`

1. some - any

2. some

3. any

4. any

5. any

6. some

7. any

8. some

9. some

10. any - any

11. some - any

12. some

What, lớp 5 học gùi mè

`114.02 - (114.37 - 85.98)`

`= 114.02 - 114.37 + 85.98`

`= 114.02+ 85.98 - 114.37 `

`= 114.02+ 0.35 + 85.63 - 114.37 `

`= 114.37 + 85.63 - 114.37 `

`= 0 + 85.63 `

`= 85.63`

`(25 - x)/56 = 6/16`

`=> (25 - x)/56 = 3/8`

`=> (25 - x)/56 = 21/56`

`=> 25  -x = 21`

`=> x = 25 - 21`

`=> x = 4`

Vậy `x = 4`

Ựa, chị quy đồng cùng mẫu nhanh hưn á

1C

2C

3D

4B

5C