user-avatar
phamhongthai.dialy
2 năm trước
diện tích của một tam giác đều có cạnh 4 cm là
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

GIÚP VỚI - NHANH NHẤT = CTLNH😥CÒN 10' NX NHANH LÊN 1.Choose the word whose underlined part is pronounced differently from the others. A.city B.cathedral C. central D.cinema A.treat B. clean B. great C. beach A.cleanB.cookC.celebrate D. candy A.AprilB.decorate C.make D.traditional A.Every B.prepare C. relative D. helping 2.Find a mistake in the four underlined parts of each sentence.(I'm capitalized because I can't print) The CAT is AMONG the LAMP and the bed A B C D There ARE a CUPBOARD, a dishwasher AND a table IN the kitchen. A B C D IS there A television FRONT of THE microwave? A B C D Choose the best answer to each of the following question. - __________ “He is of medium height, with black hair and dark skin.” => ______ do you play table tennis? – Once a week. => Trung wants to become a musician. He thinks it is the _______ job in the world. => There are too many buildings ______this city. => ______pictures in the attic. => Let’s ____ to the cinema. => Would your sister like______ to the party? => I’ve bought a new ______ for this new year. It’s very easy to see dates on it. => We usually ______ our house several days before Tet comes. => People in the world______ the New Year in different ways. => 3.Put the following words into the correct tenses. Listen! (they/ sing) ______________ in the classroom? => My family like (spend) ______________ our summer holidays at the seaside. => She (have) ______________ long black hair. => My father (be) ______________ very kind. => I (go) ______________ to the cinema with my sister this evening. => 4.Choose the correct answer for each of the gaps to complete the following text. It is a custom for all ___________ of a Chinese family to be present at home on the Eve of Chinese New Year for the family gathering. This custom is meant to show the unity of the family for the ___________ new year. On the ___________ five days of the Chinese New Year, no one in the family is allowed to sweep the floor. The Chinese believe that sweeping the floor ___________ drive away all the good ___________ that the New Year can bring. 5.Make questions for the underlined words. I DO MY HOMEWORD in the evening. => Tam has Math ON TUESDAY AND WEDNESDAY. => His school is IN THE CITY. => Hang LISTENS TO MUSIC after school. => 6.Reorder the words / phrases to make correct sentences. is / than / more colorful / My garden / this park /. => London / parks / has / famous / many /. => is / than / cheaper / a car / A bike /. => my teacher’s voice / than / is / My mother’s voice / softer /. => 7.Finish the second sentence so that it means the same as the first one. How many times a week do you go to your painting club? --> How often His father is thinner than him. --> He This exercise is easier than that exercise. --> That exercise Russia is bigger than Viet Nam. --> Viet Nam

B. PHẦN BÀI TẬP Câu 1. Tìm số đối của mỗi số nguyên sau: –7; 0; –4; 12; 5 và 5 Câu 2. Tính: a) 8274 + 226 ; b) (–5 ) + (–11) ; c) (–43) + (–9) Câu 3. Tính: a) 17 + (–7) ; b) (–96) + 64 ; c) 75 + (–325) Câu 4. Tính: a) 10 – (–3) ; b) (–21) – (–19); c) 13 – 30 ; d) 9 – (–9) Câu 5. Tính tổng: a) (–30) + 15 + 10 + ( –15) ; b) 17 + (–12) + 25 – 17 ; c) (–14 ) + 250 + (–16) + (–250) ; d) ( –3) + (–14) + 27 + (–10) Câu 6. Đơn giản biểu thức: a) (x + 17 ) – (24 + 35) ; b) (–32) – (y + 20 ) + 20. Câu 7. Tính nhanh các tổng sau: a) ( 3567 – 214) – 3567; b) (– 2017) – (28 – 2017); c) –(269 – 357 ) + ( 269 – 357 ); d) (123 + 345) + (456 – 123) – [2017 – (345)] Câu 8. Bỏ dấu ngoặc rồi tính: a) ( 17 – 229) + ( 17 – 25 + 229) ; b) (125 – 679 + 145) – ( 125 – 679 ) Câu 9. Tìm x biết: a) 15 – ( 4 – x) = 6 ; b) – 30 + ( 25 – x) = – 1 ; c) x – ( 12 – 25) = –8 ; d) ( x – 29 ) – (17 – 38) = – 9 Câu 10. Tìm số nguyên x biết: a) x – 5 = – 1 ; b) x + 30 = – 4; c) x – ( – 24) = 3 ; d) 22 – (– x ) = 12; e) (x + 5 ) + (x – 9) = x + 2 ; f) (27 – x) + (15 + x) = x – 24

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team