viết số lớn nhất có các chữ số khác nhau mà tổng của nó bằng 31
giúp mik với,mik tik cho
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Kc=10,có tất cả số thừa số là : (97-7):10+1=10
Các chữ số tận cùng là : 9,3,1,7,9,3,1,7,9,3. Do vậy 3+8=11 chữ số tận cùng là 1
ta có: 1 tạ = 100kg
mà ta có 3 người cần qua sông, cân nặng lần lượt là: 55kg,45kg và 50kg. Vì vậy ta phải đi 2 chuyến
=> Chú Hoàng và Chú Huy đi qua trước rồi sau đó chú Hoàng quay lại đón chú Việt quá
tick đúng cho mik nha
ta tính bằng thuận tiện : (55+45)+50 = (100)+50 =150
ta có 100kg=1 tạ
vậy ta có thể làm như sau :chú Hoàng đưa chú Việt qua sông trước sau đó chú Hoàng về đón chú Huy vào lượt 2 .
vậy là ta đã có thể đưa cả ba người qua sông .
Hiệu số tuổi hai bố con là:
`37 - 9 = 28` (tuổi)
Mỗi năm mỗi người tăng một tuổi nên hiệu số tuổi giữa 2 bố con Hà không đổi
Ta có sơ đồ:
Tuổi Hà lúc đó: (1 phần)
Tuổi bố Hà lúc đó: (5 phần)
Hiệu số phần bằng nhau là:
`5 - 1 = 4` (tuổi)
Tuổi bạn Hà lúc đó là:
`28 : 4` x `1 = 7` (tuổi)
Số năm trước để tuổi Hà bằng 1/5 tuổi bố Hà là:
`9 - 7 = 2` (năm)
Đáp số: `2` năm
1. | What does it say? A. It says ‘go straight’. B. It says ‘stop’. C. It says ‘turn round’. | |
2. | What are these animals? A. They’re hippo. B. They’re hippos. C. They are hippoes. | |
3. | What is Minh doing? A. He dances around the campfire. B. He’s dancing the campfire. C. He’s dancing around the campfire. | |
4. | Do you want to go to the water park? A. Great! I can’t. B. Great! Let’s go. C. Sorry, let’s go. |
V. Write suitable questions for the answers given. (0,75 point)
1. | - ____Can you buy a hamburger for me________________________________? - Sorry, I can’t. | |
2. | - ______Why do you like them______________________________? - Because they dance beautifully. | |
3. | - _____What was the weather like last Monday_______________________________? - It was rainy last Monday. |
VI. Read and write T (True) or F (False). (0,75 point)
Friday It was rainy today. So I was at home all day. | Saturday There was a beautiful rainbow in the sky today. I was able to take lots of photos with my new camera. |
Sunday Today was very cold but I was still outside. There was a lot of fun at the park. | Monday The weather was windy but I was not able to fly my kite today. I was outside for a walk and an ice cream. |
1. It was rainy on Monday. _____F______
2. I was at the park on Friday. _____F______
3. There were lots of photos of the rainbow on Saturday. ______T_____
VII. Fill in the blanks. (1 point)
My name is Martin and I live in a small town. In my town, there is a (1) ____bookshops_______ and a (2)
________bakery______. There is a bus stop but there aren’t any airports. There are lots of houses, but there aren’t any tall buildings. My favourite place is the (3)
_____waterpark_____. It’s near a (4)
____souvenir shop_______. I love playing with my little brother there.
VIII. Write suitable answers to the questions using given words. (1 point)
turn right | run quickly | putting up a tent | cloudy |
1. Why do you like horses?
⭢ _______Because they run quickly________________________________________________
2. What are they doing?
⭢ ___They are putting up a tent____________________________________________________
3. What does it say?
⭢ __It say turns right_____________________________________________________
4. What was the weather like yesterday?
⭢ _______________It was cloudy________________________________________
IV. Read and choose A, B or C.
1. | Do you want to go to the bookshop? A. Great! Let’s go. B. Sorry. Let’s go. C. Great! I can’t. | |
2. | Why do you like birds? A. Because they roar loudly. B. Because they dance beautifully. C. Because they sing merrily. | |
3. | What is he doing? A. He builds a campfire. B. He’s building a campfire. C. She’s building a campfire. | |
4. | What does it say? A. It says ‘turn right’. B. It says ‘turn left’. C. It says ‘turn round’. |
V. Write suitable questions for the answers given.
1. | - ____What are they________________________________? - They’re giraffes. | |
2. | - _______What are they doing_____________________________? - They’re putting up a tent. | |
3. | - _______What does the sign say_____________________________? - It says ‘go straight’. |
VI. Read and write T (True) or F (False).
Lizzy was at the zoo with her parents. For lunch, there were some sandwiches for her mum and a hamburger for her dad. There were some giraffes in their photos. Next, they were able to see the monkeys. The monkeys were able to swing from the trees and they were so funny. That was their great day at the zoo.
1. There were some sandwiches and a hamburger for her parents. ______T____
2. There were some monkeys in the photos. _____F_____
3. The monkeys were very funny. ____T______
VII. Fill in the blanks.
Today, I go to a campsite with my family. The weather is (1) _______sunnyg_____. We get to the campsite by car. When we arrive, we put up a big (2)
_____tent_____. My dad builds a (3)
______campfire_______. We cook and sing songs around it, too. My sister brings some cards and we play (4)
_______cards______ together.
VIII. Write suitable answers to the questions using given words.
crocodiles | rainy | telling a story | go straight |
1. What does it say?
⭢ _________It says "go straight"____________________________________________________
2. What are these animals?
⭢ ____They are crocodiles_________________________________________________________
3. What was the weather like last weekend?
⭢ ______It was rainy_______________________________________________________
4. What is Lan doing?
⭢ ___________She is telling a story__________________________________________________
Số tròn trăm liền trước 4560 là 4500 (Đáp án B)
-> Số tròn trăm có tận cùng 2 chữ số 0 (Loại A và C)
-> Số liền trước số 4560 là số bé hơn 4560 (Loại D)
a: Nửa chu vi thửa ruộng là 130:2=65(m)
Tổng số phần bằng nhau là 2+3=5(phần)
Chiều rộng thửa ruộng là 65:5x2=26(m)
Chiều dài thửa ruộng là 65-26=39(m)
Diện tích thửa ruộng là:
26x39=1014(m2)
b: Diện tích phần còn lại là:
\(1014\times\left(1-\dfrac{2}{5}\right)=1014\times0,6=608,4\left(m^2\right)\)
98761
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