đô dài một cạnh của mảnh vườn là

500\(\):4=125(m)

đổi125m=12500cm

độ dài một cạnh của mảnh vườn trong bản đồ là

12500:500=25(cm)

đáp số :25cm

chiều rông của sân chơi là

240:3\(\times\)2\(\)=160(m)

đáp số: 160 m

a)178,9;17,89;1,789;1,709

b)178,9=178,9

17,89=17,9

1,789=1,800

1,709=1,700

a)91/24

b)89/8

c)2/3

d)15/56

a)5mm=0,5cm

b)891kg=0,891tấn

c)3m29dm2=\(\)3,29dm2

bài 1a)2và3/4

b)3và1/2

Question 1.Viet nam

Question 2. 47 queen street

Question 3.he want to be a fireman

Question 4. he like cook foods

Question 5.she like to play piano 

Question 1: I am a student. I am friendly and hardworking, and I enjoy learning new things.

Question 2: My favourite colour is blue. My favourite animal is a dog. My favourite food is pizza, and my favourite sport is football.

Question 3: My brother is tall and funny. He is kind and always helps me with my homework.

Question 4: At the weekend, my family and I watch movies, visit relatives, and sometimes go to the park together.

Question 5: I would like to be a teacher in the future because I enjoy helping others learn.

My best friend lives at 25 Green Street in the city center. She is tall with long black hair and a bright smile. She is kind and cheerful. At weekends, she reads and plays badminton. Her dream job is to become a doctor.