user-avatar
tranquoctoan
2 năm trước
BÀI TẬP VỀ PHÉP NHÂN SỐ NGUYÊN Bài 1: Thực hiện phép tính a) 125. ( -8 ) b) ( - 12500 ) . ( - 8 ) c) (-2).(-4) . (-10) d) (-2 - 3) . (- 3 – 7 ) e) (-3+8) . (-2) f) (-3 -15 ) : 9 g) (13 - 17).(-10) + (-7)2 h) 72 - 24.(10 + 3). i) 512.(2-128) -128.(-512) j) 27.( -17) + (-17).73 k) 26. (- 125) – 125. (- 36) l) (-25).8.(-4).(-125).3 Bài 2: Tìm số nguyên x, biết: a) 2x- 9= -8 b) -3.|x-1|=-27 c) (x -1). 5 = - 25 d) 2x - ( - 27 ) = 15 e) 2.| x | = 8 f) – 3x – 2 = - 20 g) 5 – (10 – x) = 7 h) 3x + 21 = 15 i) 4x – 13 = - 29 j) -7|x| = - 35 Làm giùm e bài 1i) và bài 1k) 2b) 2f) 2g) 2j) e cảm ơn nhiều ạ
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. I ____________ a lot when I was younger. a. use to swim​​​b. used to swim ​ c. used to swimming ​d. didn't used to swim 2. People__________ so often, or they just didn't travel at all. a. used to travel ​​b. used not to travel c. didn't used to travel ​​d. didn’t use to travel 3. My brother__________ his leg in a car accident when he was 20. a. broke ​​​b. used to break ​​c. uses to break ​d. breaks 4. _________long hair when you were a teenager? a. Used you to have ​​b. Did you used to have c. Did you use to have ​d. Are you used to having 5. My Grandpa never__________ coffee. He always drank tea. a. uses to like ​​​b. used to like ​​c. didn't use to like ​​d. is used to like 6. She________ as a teacher for many years before she became a writer a. didn't use to work​​ b. used to worked ​​c. used to work ​d. worked 7. There______ a bus station there. When was it built? a. used to be ​​​b. usedn't to be ​c. didn't use to be ​​d. used not being 8. Dominic _________ to bed late on Fridays and Saturdays. a. usually goes ​​​b. uses to go ​​c. doesn't use to go ​​d. is used to go 9. What kind of music ________when she was a child? a. Nancy used to like ​​​ b. used Nancy to like c. did Nancy used to like​​d. did Nancy use to like 10. He _______several books a month, but he doesn't have time any more. a. usually reads ​​b. used to read ​c. used to reading ​d. didn't use to read

Choose the correct answer 1. „I‟m a big fan of U2‟ Derek said.  Derek said he __________ a big fan of U2. A. was B. has been C. had been 2. „We‟re watching TV‟ said the twins.  The twins said they ________ TV. A. watched B. were watching C. had watched 3. „You‟ve been annoying me all day!‟ my mum said.  My mum said I ________ her all day. A. annoyed B. was annoying C. had been annoying 4. „The dog ate my homework!‟ said Ivan.  Ivan said the dog ________ his homework. A. was eating B. had eaten C. has eaten 5. „At one o‟clock, I was having lunch‟ said Molly.  Molly said she _______ lunch at one. A. had been having B. has had C. is having 6. „You‟ll get wet without an umbrella‟ Dad said.  Dad said I ____ wet without an umbrella. A. will be getting B. got C. would get 7. „You must give me your essays‟ Mrs. Vine said.  Mrs Vine said we ______ give her our essays. A. were having to B. had to C. would have to

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