I. PHẦN TRẮC NGHIỆM (5 điểm): Khoanh vào chữ  đặt  trước câu trả lời đúng:

Số 42 570 300 được  đọc  là:

A. Bốn trăm hai mươi lăm triệu bảy mươi nghìn ba trăm. 

B. Bốn triệu hai trăm năm mươi bảy nghìn hai trăm. 

C. Bốn hai triệu năm bảy nghìn ba trăm. 

D. Bốn mươi hai triệu năm trăm bảy mươi nghìn ba trăm.

1) 120 + 20 : 4 - 2².3

=> 120 + 5 - 12

=> 125-12

=>113

2) ( 120 + 20 ) : 4 -

3) 120 + ( 20 : 4 - ).3

=> 120 + 1 . 3

=> 120 + 3

=> 123

b. x² - 7x = 4 - 7(x-3)

=> x² - 7x = 4 - 7x +21

=> x² - 7x + 7x = 25

=> x² = 25

=> \(\left[{}\begin{matrix}x=5\\x=-5\end{matrix}\right.\)

c.

1. is / how / weather / the / today / ?

=> __How is the weather today ?_______________________

2. play / can / the / you / piano / ?

=> __________Can you play the piano ?_______________

3. in / the dogs / are / front / my house / of .

=> _________The dogs are in front of my house________________

4. pencils / those / and / are / rulers.

=> __________Those are pencils and rulers._______________

5. bookshelf / reach / I / not / can / the .

=> ______I cannot reach the bookshelf___________________

6. tall / is / sister / and / my / pretty.

=> My sister is tall and pretty

a) ( x² - 4 ) . ( x² - 9 ) = 0

=> \(\left[{}\begin{matrix}x^2-4=0\\x^2-9=0\end{matrix}\right.=>\left[{}\begin{matrix}x^2=4\\x^2=9\end{matrix}\right.\)

= > \(\left[{}\begin{matrix}x=-2\\x=2\\x=3\\x=-3\end{matrix}\right.\)

- Ta có: ( 5x + 1 ) ² \(=\dfrac{36}{49}\)

=> \(\left[{}\begin{matrix}5x+1=\dfrac{6}{7}\\5x+1=-\left(\dfrac{6}{7}\right)\end{matrix}\right.\)

=> \(\left[{}\begin{matrix}5x=-\left(\dfrac{1}{7}\right)\\5x=-\left(\dfrac{13}{7}\right)\end{matrix}\right.\)

=> \(\left[{}\begin{matrix}x=-\left(\dfrac{1}{35}\right)\\x=-\left(\dfrac{13}{35}\right)\end{matrix}\right.\)

1. Lan's teacher wants her(spend) ....to spend............... more time on Math.

2. I promise I (try) .....will try............... my best next semester.

3. Linh needs (improve) ......to improve.................... her English writing.

4. They didn't try (learn) .....to learn............. all new words they (come) .......came.......... across.

5. You should (underline) ....underline............the words you want (learn) ..to learn......... .

6. Can you help me (move) ..........move....................... this table?

7. Minh always (get) ..GETS.... grade A for Physics, but last semester he (get) ...got..... B. So Minh's teacher asked him (study) .....to study................... harder this semester.

8. They were proud of (be) .......being........... so successful.

1. Lisa (not go) ....DIDN'T GO............to work yesterday. She wasn't feeling well.

2. It (not rain) .......DOESN'T RAIN...............very much in summer.

3. Most people (learn) ...LEARNT.............to swim when they are child.

4. Listen to those people. What language they (talk) ......ARE TALKING....................... ?

5. The moon (go) ..GOES....... round the earth in about 27 days.

6. That bag looks heavy. CAN I (help) .HELP............. you with it?

7. It's her birthday. She (have) .....IS HAVING.................. a mealk with her friends.

8. The letter (come) ......CAME.................. a few days ago.

Một người cận thị phải đeo kính cận số 0,5. Nếu xem tivi mà không muốn đeo kính, người đó phải ngồi cách màn hình xa nhất là:

A. 0,5 (m).

B. 1,0 (m).

C. 1,5 (m).

D. 2,0 (m).