a, b là số âm

b, b là số dương

1.chu vi hình vuôn là: 3/5x4=12/5(m)

diện tích hình vuông là:3/5x3/5=9/25(m2)

2.493/25

duyệt nhé

1.he often does his homework in the evening.

=> What does he often do in the evening ?

2.she is practicing the piano

=> What is she practicing ?

3.I usually play soccer after shool.

=> When do you usually play soccer ?

4.we are going to stay there for a week.

=> How long are you going to stay there ?

5.Minh goes swimming with his friends

=> Where does Minh do with his friend ?(nếu gạch goes swimming )

=> Who does Minh go swimming with ?(nếu gạch his friends)

6.I wait for my friends everyday.

=> Who do you wait for everyday ?

7. the children are in the library.

=> Where are the children ?

8.he has math on monday and thursday.

=> What subject does he have on monday and thursday ?

9.she buys some milk at the store

=> What does she buy at the store ?

10.It is 2kilometers from my house to the markrt.

=> How far is it from your house to the market ?

2. fill in each blank with the correct adjiective from the box

shy boring funny kind clever

creative talkative confident friendly hard-working

1. It is..............boring .....................to sit on the plane with nothing to read.

2.She always has a........friendly..........smile with everyone.

3.Tthe teacher wants the students to feel.........confident ..............about asking questions when they dont't understand.

4.I'm not very.........clever...........at math.I oftten make mistakes in calculations.

5.Everyone is..........kind .............to me.They often help me when I need.

6.She is very.............creative...........She writes poetry and paints.

7.It's a really.....funny...........film;everyone laughs a lot.

8.children are often...........shy............of people they don't know

9.He's a little bit.............talkative..................He likes to talk a lot.

10.He is often............hard-working .......at school and he always gets good marks

tớ nha h cho tớ nhanh nha

diện tích tam giác là:5.4*3.5:2=9.8(m2)

Đáp số:9.8m2

bài này trên violympic

+ Cây sống ở sa mạc nóng thiếu nước cây thích nghi theo hướng- lá tiêu giảm, biến thành gai, thân mọng nước, rễ dài và ăn sâu vd: xương rồng, cỏ lạc đà,...
+ Cây sống ở môi trường nghèo chất dinh dưỡng có khả năng bắt và hấp thu chất dinh dưỡng từ côn trùng vd: cây bắt ruồi, cây nắp ấm.
+ Cây thụ phấn nhờ côn trùng thì có hoa màu sắc sặc sỡ thu hút côn trùng....

tích đúng là:35/(6+0+8)*608=1520

Dài quá đi à bạn ơi sao dài zậy

hình như đầu bài sai

Minh is my new classmate. He now staying (1)......with.........his brother in Hà Nội, but he's (2)..........in....Bắc Giang Town and his parents still (3)...live........there.

Minh's brother's house is smaller (4).......than.........his house in Bac Giang, and it is on Xuan Thuy Street. Our (5).......house......is in the center of Ha Noi, so (6).......it.....is about 8 kilometers from his new house (7).......to......school. Every day Minh goes to school (8)......by......bike. Minh is unhappy because he doesn's (9).......have......many friends in Ha Noi. He also (10)......misses.......his parents and his friends in Bac Giang.