Ex1. Complete sentences
1. She (not study) ………. on Saturday.
2. He (have) ………. a new haircut today.
3. I usually (have) ……….breakfast at 6.30.
4. Peter (not/ study)……….very hard. He never gets high scores.

5. My mother often (teach)……….me English on Saturday evenings.
6. I like Math and she (like)……….Literature.
7. My sister (wash)……….the dishes every day.
8. They (not/ have)……….breakfast every morning.
Ex2. Rewrite
1. My brothers (sleep) on the floor. (often) =>____________
2. He (stay) up late? (sometimes) => ____________
3. I (do) the housework with my brother. (always) => ____________
4. Peter and Mary (come) to class on time. (never) => ____________
5. Why Johnson (get) good marks? (always) => ____________
6. You (go) shopping? (usually) => ____________
7. She (cry). (seldom) => ____________
8. My father (have) popcorn. (never) => ____________
Ex3. Complete sentences
1. she/ not/ sleep late on weekends =>________
2. we/ not/ believe/ ghost=>________
3. you/ understand the question? =>________
4. they/ not/ work late on Fridays =>________
5. David/ want some coffee? =>________
6. she/ have three daughters =>;________
7. when/ she/ go to her Chinese class? =>__

1. Tìm x biết:
a) 15 – ( 4 – x) = 6 ;

b) - 30 + ( 25 – x) = - 1 ;
c) x – ( 12 – 25) = -8 ;

d) ( x – 29 ) – ( 17 – 38 ) = - 9
2. Tìm số nguyên x biết:
a) x – 5 = - 1 ;

b) x + 30 = - 4;
c) x – ( - 24) = 3 ;

d) 22 – ( - x ) = 12;
e) ( x + 5 ) + ( x – 9 ) = x + 2 ;

f) ( 27 – x ) + ( 15 + x ) = x – 24
3. Tìm x biết:
a) 461 + (x - 45) = 387

b) 11 - (-53+ x ) = 97

c) - ( x + 84) + 213 = -16

Giúp mik câu nào cx dc nhé mn

1. Đơn giản biểu thức:

a) (x + 17) – (24 + 35) ;

b) ( -32) – ( y + 20 ) + 20.

2. Tính nhanh các tổng sau:

a) ( 3567 – 214) – 3567;

b) ( - 2017) – ( 28 – 2017);

c) -( 269 – 357 ) + ( 269 – 357 );

d) ( 123 + 345) + (456 – 123) – [2017 - (-345)]

3. Bỏ dấu ngoặc rồi tính:

a) (17 – 229) + ( 17 - 25 + 229) ;

b) ( 125 – 679 + 145) – ( 125 – 679 )

P/S: Bà i n ày mi k sử a l ại l ỗi v à gi ớ i h ạn l ại s ố b ài.

1. Đơn giản biểu thức:
a) (x + 17) – (24 + 35) ;

b) ( -32) – ( y + 0 ) + 20.
2. Tính nhanh các tổng sau:
a) ( 3567 – 214) – 3567;

b) ( - 2017) – ( 28 – 2017);
c) -( 269 – 357 ) + ( 269 – 357 );

d) ( 123 + 345) + (456 – 123) - [2017-(345)]
3. Bỏ dấu ngoặc rồi tính:
a) (17 – 229) + ( 17 - 25 + 229) ;

b) ( 125 – 679 + 145) – ( 125 – 679 )
4. Tìm x biết:
a) 15 – ( 4 – x) = 6 ;

b) - 30 + ( 25 – x) = - 1 ;
c) x – ( 12 – 25) = -8 ;

d) ( x – 29 ) – ( 17 – 38 ) = - 9c) x – ( - 24) = 3 ; d) 22 – ( - x ) = 12

5. Tìm số nguyên x biết:

a) x – 5 = - 1 ;

b) x + 30 = - 4;

c) x – ( - 24) = 3 ;

d) 22 – ( - x ) = 12;

e) ( x + 5 ) + ( x – 9 ) = x + 2 ;

f) ( 27 – x ) + ( 15 + x ) = x – 24 .