Mn giúp em ạ em đng cần gấp

Câu 1: Thực hiện các phép tính sau một cách hợp lí nhất a) 100 (74-16) A1) 125+ 70 +375 +230 C1) [25.(18-4¹)-10]:4+6 e) 4.52.5.25.2 h) 28.78+28.13 +28.9 b) 5.12 +5.7 +5 c) 36:3² +2².2²-3³.3 bl) 2.3² +4.33 d)11.25 +95.11 +89.51 +69.89 g) 115.23-15.23 m) 4.3 [(5² +2³):11]-26} + 2002 n) 11400: { [ (15.3-21):4 ] + 108 } Câu 2: Tìm x, biết: a,(x + 17):21-3=7 5*.5³ = 125 Câu 3. b. 3x+3 13 = 230 c) a) Tìm x biết: 20.2 +1=10.4 +1 b) Tìm x biết: (4 –x:2)−1=2.(2 -5:2°)+1 c) Chứng minh rằng: n(n+2017) là số chẵn với mọi số tự nhiên n d) So sánh: 3200, 2100 Câu 4: Một lớp học có 5 tổ. Số người mỗi tổ bằng nhau. Trong một bài kiểm tra, mỗi học sinh được điểm 7 hoặc điểm 8. Tổng số điểm của cả lớp là 336. Tính số học sinh được điểm 7, số học sinh được điểm 8. Câu 5 : Tính:A = 1 +3+32+33+....+ 319 + 320 Câu 6. Tính tổng S=1+9+9+...+92017

Exercise:I. Put the verbs in brackets into the correct tense: 1. Mr.Tuan always (go) … to work by bus. 2. We (start) …… our new school year last month. 3. She (receive) …… her pen pal’s letter two days ago. 4. It (not rain) …. in the dry season. 5. Lan (take)…… her younger brother to the zoo last Sunday. 6. I (live) …… in Ha Noi when I was small. 7. They (give) …… me the letter a few minutes ago. 8. We (learn) ……… English now. 9. He (write)…… a long novel at present. 10. Where are you? – I’m upstairs. I (have)……… a bath. 11. You (have) …… breakfast yesterday? 12. My little sister (drink) …… milk every day. DRINKS 13. The doctor sometimes (return)… home late. Returns / doesn’t return / Does .... return 14. They (have) …… lunch in the cafeteria now. Are having 15. They often (thank)… me for what I do for them. 16. His uncle (teach) … English in our school five years ago. 17. They (not go) … to the movies last Sunday. 18. You (find) …… my pen yesterday? 19. There (be) … an English class in this room tomorrow evening. 20. They (paint) … the school gate next year. 21. They (build) …… a new school in this area next year. 22. My brother (work) …… in this factory tommorrow. 23. The children (play) … soccer at yesterday. 24. I (see) …… Nga at the bus stop every morning. 25. What you (do) …… last night? 26. It (be) ……..often hot in the summer. 27. My mother went to the supermarket yesterday, but she (not buy)……. anything. 28. Nam and Ba (play) ………………. soccer at present. 29. My family (go) ………………….…………. Da Lat next summer. 30. Please don’t make so much noise. I (study)……….. 31. The water (boil) ……………at 100 degrees Celsius. 32. Look! Somebody (climb) ……………………up that tree over there. 33. I (not see) ………………her last week. 31. Mary (be) ____________________ seriously ill last night. 32. They sometimes (go) ____________________ school by bus. 33. We last (see) _____________ them last Sunday. 34. I (not meet) ____________________ him last week. 35. Now they (play) ____________________ happily in the school yard. 36. We (not finish) ____________________ our exercises everyday. 37. Mr. David ( buy) ____________________ a new house in 2010. 38. They (build) ____________________ a new hospital in my neighborhood next month. 39. It (not rain) ____________________ last week. 40. Now we (learn) ______ English. 41. Mrs Hoa (teach) _______ English in this school in 2023. 42. Look! That car (run) _________________ very fast. 43. The Browns (have) ____________________ dinner at the moment. 44. He (live) ____________________ in Hanoi 20 years ago 45. Alexander Graham Bell (invent) _____________ the telephone many years ago. . 46 I (spend) _____________ my holiday in Ha Long last summer. 47. Ba's teacher (give) __________ him a lot of homework last week. 48. Tom hopes he (meet) _____ many interesting people when he goes to Hanoi next month. 49. Mai and her friends (walk) ____________________ to school now. 50. They (go) __________ to Sao Mai Movie Theater last night.

Một nhóm ng chuẩn bị gạo cho 200 ng ăn trong 14 ngày sau 4 ngày lại có thêm 50 ng nữa đến thêm. Số thức ăn còn lại đủ ăn trong bao nhiêu ngày?

IX. REWRITE 1.Let’s have lunch in the garden How ……………………………………………………..? 2. The photocopy store is in front of the bookshop. The bookshop………………………………………………. 3. My pen is cheaper than yours Your pen…………………………………………………… 4. we plan to visit our grandparents this weekend We are………………………………………………………….

one / best / Tran Hung Dao / the / is / of /secondary schools / Bac Giang / in /./school/