a rectangular paper is 5/4m long and 1/2m wide.peter cuts it into many peices. each peices is a square with the side of 1/4 m. How many peices does he cut ?
A rectangular paper is 5/4m long and 1/2m wide. Peter cuts it into many pieces. Each piece is a square with the side of 1/4. How many piece does he cut?
chu hình chữ nhật là:5/4*1/2=5/8
chu vi hình vuông là1/4*1/4=1/16
anh ấy cắt đc số mảnh là:5/8:1/16=80/8=10
1.Three pumpkins are weighed in pairs in all possible ways. The weights of all these pairs are 8kg, 9kg and 11kg. How much does the lightest pumpkin weight?
2.It takes Jack 42 minutes to cut a long log of wood into seven pieces. How long will it take him to cut that log of wood into nine pieces?
3.The sum of two fractions 1/2 and 1/3 is a fraction with denominator of 12. Find its numerator
4.The floor of a rectangular room is covered with square tiles. The room is 24 tiles long and 16 tiles wide. The number of tiles in the outer border of the floor is ?
5.The average of 4, 8, X and 13 is 8. The value of X is ?
6.How many zero digits are there in ten million?
7.Fill the missing number in the blank
44444 = 40000 +400+ ............ + 4
8.There are 3 children in a family,Jack,Mary and Peter.Mary can clean the house for 1 hour.Jack can do thesame job for 2 hours and Peter needs 6 hours.If theydo the job together then they need ........... minutes.
9.MNPQ is a square that is made up of two identical rectangles and two squares of area 9 and 16CM2 . The area of the square MNPQ is ? CM2
TO SE TICK CHO AI NHANH VA DUNG
1. Ba bí ngô được cân nặng theo cặp trong tất cả các cách có thể. Các trọng số của tất cả các cặp là 8kg, 9kg và 11kg. Bao nhiêu trọng lượng bí ngô nhẹ nhất?
2. Phải mất Jack phút 42 để cắt một khúc gỗ dài của gỗ thành bảy miếng. nó sẽ đưa anh ta bao lâu để cắt mà log gỗ thành chín miếng?
3. Tổng của hai phân số 1/2 và 1/3 là một phần nhỏ với mẫu số của 12. Tìm tử số của nó
4. Các sàn của một căn phòng hình chữ nhật được bao phủ với gạch vuông. Các phòng dài 24 gạch và rộng 16 gạch. Số gạch ở biên giới phía ngoài của tầng này là?
5. trung bình 4, 8, X và 13 là 8. Giá trị của X là?
6. Có bao nhiêu chữ số 0 ở đó trong mười triệu?
7. Điền số còn thiếu vào chỗ trống
44.444 = 40000 +400+ ............ + 4
8. Có 3 trẻ em trong một gia đình, Jack, Đức Maria và Peter.Mary có thể làm sạch nhà trong 1 giờ .Jack có thể làm cùng một công việc trong 2 giờ và Peter cần 6 giờ. Nếu họ thực hiện công việc với nhau sau đó họ cần phút ............
9.MNPQ là một hình vuông được tạo thành từ hai hình chữ nhật giống hệt nhau và hai hình vuông của khu vực 9 và 16CM2. Diện tích của hình vuông MNPQ là? CM2
combine each pair of these sentences , using if
1. he can do a part to save the environment by buying recycled products
2. putting garbage into the bins is one answer to minimize pollution
2. we should take the mao with us or we will lose out way on the street
4. ellen can borrow it , but she must give ir back next week
5. the authorities are thinking if raising the petrol peices . i will have to cycle to work
combine each pair of these sentences , using if
1. he can do a part to save the environment by buying recycled products
=>If he buys recycled products,he can do a part to save the environment
2. putting garbage into the bins is one answer to minimize pollution
=>If you put garbage into the bins ,you can minimize pollution
3. we should take the mao with us or we will lose out way on the street
=>If we don't take the map with us,we will lose out way on the street
4. ellen can borrow it , but she must give ir back next week
=>if Ellen gives it back next week,she can borrow it
5. the authorities are thinking if raising the petrol peices . i will have to cycle to work
=>If the authorities raise the petrol peices,they will have to cycle to work
combine each pair of these sentences , using if
1. he can do a part to save the environment by buying recycled products
2. putting garbage into the bins is one answer to minimize pollution
2. we should take the mao with us or we will lose out way on the street
4. ellen can borrow it , but she must give ir back next week
5. the authorities are thinking if raising the petrol peices . i will have to cycle to work
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Combine each pair of these sentences, using if :
1. He can do a part to save the environment by buying recycled products.
=> If he buys recycled products, he can do a part to save the environment.
2. Putting garbage into the bins is one answer to minimize pollution.
=> If you put garbage into the bins, you will minimize pollution.
3. We should take the map with us or we will lose out way on the street.
=> If we don't take the map with us, we will lose out way on the street.
4. Ellen can borrow it, but she must give it back next week.
=> If Ellen gives it back next week, she can borrow it.
5. The authorities are thinking of raising the petrol peices. I will have to cycle to work.
=> If the authorities rise the petrol peices, I will have to cycle to work.
A piece of rectangular cloth 48m long and 42m wide, cut into smaller pieces of square shape, without wastage of material. How many squares of maximum size are possible ?
ố chà chà ha ha mình ko giải được hihi hôhô
The industrial park is built on a rectangular plot of land with a length of 5 km and a width of 2 km. How many square kilometers is the area of that industrial park?
(đây là bài toán đố)
Diện tích khu công nghiệp đó là :
5 x 2 = 10 (km2)
Đáp số : 10 km2
1>My class of 32 students are going to a Fun Fair for children and need to buy entrance tickets for each student. The price of an entrance ticket is 5,000 dong. The good news is that when we buy 5 tickets, the Fun Fair gives us 1 extra ticket for free. How much does my class have to pay to buy enough tickets for the whole class?
2>Minh’s family needs to tile the floor of a rectangular room, 5 m in length and 3.8 m in width, with square tiles. The length of the side of each tile is 0.5 m. Each of the tiles close to the wall, if not a whole one, is cut from a whole tile. The total number of tiles needed to tile the room is ?
3>A student cycles from home to school in a distance of 1,200 m with speed of 2.5 m/s. There are 4 crossroads on the way; the time to stop for red lights at each crossroad is 30 s the longest. The longest time it takes the student to reach school is?
1. 6 kets = 25.000đ (5.000đ x 5), 32 : 6 = 5 and 2 kets, 25.000đ x 5 = 125.000đ + 2 x 5.000đ = 135.000đ
2. (5 x 3.8):(0.5 x 0.5) = 76
3. 1,200 : 2.5 = 480s + 30s x 4 = 600s = 10 minutes
1/- How many 1x1 squares fis into the large square with the side length 3.7 ? . Find the greatest possible number .Answer: The greatest possible number of 1x1 squares is .....
Part 3 Read and choose the correct option.
Mr. Hung (1)…. in Hai Duong City. He has two (2)… children. He (3)… at Nguyen Trai School. His school (4)… two floors. He always gets up early and has breakfast at six fifteen. He (5)… working at seven o’clock and finishes at eleven twenty. He likes his job because he likes teaching children. But he doesn’t teach everyday. On Tuesdays and Thursdays, he stays at home with his children.
1, A ,lives B, works C, goes
2, A, fine B, big C, small
3, A, teaches B, gets C, does
4, A, have B, has C, does
5, A, finishes B, end C, starts
Part 4 Read the passage and choose the correct answer.
There are four seasons in a year in our country. They are spring , summer , fall and winter. In the spring, the weather is usually fine and warm. Sometimes it is cold but not very cold. There are many flowers in this season. After spring, it is the summer. In the summer, the days are long and the nights are short. We often go on vacation in the summer. Fall is a nice season. The weather is often cool. In the winter, it’s usually very cold. The days are short and the nights are long. We always wear warm clothes in the winter.
1, How many seasons are there in your country?
A, Three B, four C, five
2, What is the weather usually like in the spring?
A, fine and warm B, fine and hot C, rainy and warm
3, Where do you often go in the summer?
A, at school B, at home C, on vacation
4, Is the weather often cool in the fall?
A, Yes, it is. B, Yes, it does. C, No it is not.
5, Are the days long or short in the winter?
A, They are long B, They are short C, It is short
D- WRITING Part 1: Rewrite the sentences with the same meaning.
1. This school is small. -> This school isn’t big
2. How many students are there in your school? -> How many students does your school have?
3. Nam is Hoa’s brother. -> Hoa is Nam’s sister
4. My school has 4 floors. -> There are 4 floors in my school
5. The flower garden is to the left of my house. -> My house is to the right of the flower garden