Câu 1: Chữ số 4 trong số 7249618 chỉ: A. 40000 B. 4000 C. 400 D. 400000 Câu 2: Năm 1984 thuộc thế kỉ: A. XVIII B. XIX C. XX D. XVII Câu 3: Số thích hợp để điền vào chỗ chấm của 5tấn 85kg =......................kg A. 585 B. 5850 C. 5085 D. 5805 Câu 4: Số trung bình cộng của các số: 20; 35; 37; 65 và 73 A. 40 B. 42 C. 44 D. 46 Câu 5: Những phát biểu nào dưới đây em cho là đúng. A. Góc bẹt nhỏ hơn góc tù. B. Góc tù lớn hơn góc vuông. C. Góc nhọn lớn hơn góc bẹt. D. Góc nhọn lớn hơn góc vuông.

Cho tam giác ABC cân tại đỉnh A.Một điểm M di chuyển trên đường tròn ngoại tiếp tam giác ABC.Đường thẳng AM cắt BC tại P.CMR: 1)Các vòng tròn ngoại tiếp tam giác BMP và tam giác CMP tiếp xúc AB,AC lần lượt lại B và C. 2)Tìm tập hợp tâm của các đường tròn BMP và CMP

1.the reseach finds that reading for pleasure can result in increased _________, improved relationships with others, and reductions in the symptoms of depression A. empathy B. empathetic C. empathize D. empathically 2. on television, most violent acts are ___________ humorously and go unpunished ( portrait )

hoàn thành chuỗi phản ứng hoá học sau và viết PTHH xảy ra? Ca- Cao- Ca(OH)2-CaSO3-SO2-H2SO3-Na2SO3

Cho b chia hết cho a. Tìm ƯCLN(a,b). Cho ví dụ: Cho b chia hết cho a và c chia hết cho a. Tìm ƯCLN(a,b,c). Cho ví dụ

Chứng minh góc xoy và x'oy' bằng nhau bằng cách kéo dài hình vẽ Mik cảm ơn trước ạ

nhoanh nhe gấp lắm nhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Cho hbh ABCD , gọi M,N thứ tự là Tđ của BC và DC a, C/m BD = 2MN ; góc CMN = góc ADB b, AC cắt BD tại O; AN và AM cắt BD thứ tự tại E, F . C/m DE = EF = FB c, C/m chu vi tg AMN nhỏ hơn chu vi tg ABC

Làm c2 , c3 Nhanh giúp em với ạ

Giúp em với ạ Bài tập : A. Read and decide if each statement is true (T) or false (F). My name is Elena and I’m a pupil of Green School. My school is in Orange Street. I am twelve years old. I would like to tell you a few words about my school life. I go to school five days a week except Saturday and Sunday. Classes in my school start at 8 o’clock in the morning and end at 15.30. I often have 6 or 7 lessons a day. I study a lot of different subjects: English, History, Geography, Biology, Physics, Chemistry, Math, etc. I like English because I can learn lots of interesting things in England. I usually receive good marks in this subject. I wish to become an English teacher in the future. This is my school. It was built about ten years ago. My classroom is on the third floor. Its windows face the school-yard. There are two large windows in my classroom; a great amount of flowers grow in pots that stand on the window-sills. Pupils in my class are responsible for watering the flowers several times a week. And I all do it with great care and pleasure. On the walls of my classroom there are different colour maps, portraits, and wall newspapers. My school has a stadium, a library, a gym and a computer room, too. I love my school so much 1. Elena is a pupil at Blue School. _________ 2. She goes to school five days a week. _________ 3. Her school starts at 8.00 a.m. and finishes at 3.00 p.m. _________ 4. She learns different subjects at school. _________ 5. Maths is her favourite subject. _________ B. Choose the letter A, B, C or D to answer these questions Hi. My name is Mary. I’m twelve years old. I’m a pupil. I live in a beautiful area in a big city. Every morning I get up at 5:30 o’ clock. After that, I dress up, have breakfast and go to school. My school is not very far from my house so I often go to school on foot. But today I ride my bike because I want to attend my English class after school. I love English so much. I will study abroad soon. 1. What does Mary do? A. a teacher B. a farmer C. a student D. a driver 2. What time does she get up in the morning? A. half past five B. five forty-five C. a quarter to six D. six o’clock 3. What subjects does she like? A. Geography B. Literature C. English D. Both B & C 4. Is her school far from her house? A. Yes, it is B. No, it doesn’t C. No, it isn’t D. Yes, it does 5. Does she play soccer after school? A. Yes, she is B. No, she doesn’t C. No, she don’t D. Yes, he does