1. I like monkeys because they can swing.

2. I go to school at eight o'clock.

3. Why do you want to go to the post officel ?

4. How much are they?

Tham khảo ạ

= 145 x (99+1) - 143 x ( 102-2) + 47 x ( 54 - 53) -20-27

= 145 x 100 - 143 x 100 + 47 x 1 -20-27

= 100 x ( 145 - 143 ) + 47 - 20 - 27

= 200 + 47 - 20 - 27

= 200

1.B

2.B

3.B

4.C

5.A

6.C

7.D

8.A

9.C

10.D

Tham khảo ạ