优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 计算:(1);(2);(3);(4);(5);(6)()。-七年级数学
计算:(1);(2);(3);(4);(5);(6)()。-七年级数学
题目简介
计算:(1);(2);(3);(4);(5);(6)()。-七年级数学
题目详情
计算:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
(
)。
题型:计算题
难度:中档
来源:同步题
答案
解:(1)原式=-2;(2)原式=-65;(3)原式=9;(4)原式=5;(5)原式=
;(6)原式=3x-14
上一篇 :
We all think it is Jack as w
下一篇 :
Such poets as Shakespeare___
搜索答案
更多内容推荐
如图,实数a、b在数轴上的位置,化简。-八年级数学
计算:-八年级数学
--- How are our team playing?--- They are playing well. But unluckily one of them hurt.A.gotB.getsC.
化简:(1);(2)。-九年级数学
My cousinin Beijing University at present, after which she will work in Beijing.A.educatedB.has been
Great changes _______ in this city over the past five years.A.took placeB.have taken placeC.were tak
More than twenty years____________since he came to teach in this school, and every student and every
计算的结果是()。-八年级数学
This machine __________ It has worked for years.A.didn’t workB.wasn’t workingC.doesn’t workD.isn’t w
There they met two Indian monks who were Buddhist masters and ______ as educators without salary. A.
The bike __ much money.A.has not costB.cost notC.isn't costD.didn’t cost-英语
It was not until 3 days later that the boy came back to life and explained to the police what_______
My money _____,so I must go to the bank to withdraw some of my savings before I have none in hand.A.
计算:(+2)﹣(﹣)-八年级数学
---What’s wrong with your cell phone? I can’t get through.--- Oh, my line was cut off because I ____
化简:=()。-九年级数学
—I’m going to attend your lecture at 9∶30 tomorrow morning.—I regret to tell you that. When you arri
---The food here is nice enough. ---My friend ______ me a right place.A.introducesB.introducedC.had
计算:|-|+2的结果是()。-八年级数学
-What made Susan so angry?-____ in the rain for a long time.Being kept waiting B. Being kept to wait
By the time you get to Beijing tomorrow, I ______ for Shanghai.A.am leavingB.should have leftC.will
The toddler who miraculously ______ a fall from her 10th-floor home in Hangzhou, east China, ______
The CCTV Spring Festival Cala Eveningannually since 1983 and it is still very popular with most Chin
This ______ my first lime standing in front of so many people, I can’t help sweating.A.beingB.isC.wa
— We were all missing you at the party!— Sorry. I was busy with my project research. Otherwise, I __
小马虎在下面的计算中只做对了一道题,他做对的题目是[]A.+=B.﹣=1C.3﹣=2D.3+=3-九年级数学
若x<0,y<0,则的值是[]A.x-yB.-x-yC.x+yD.-x+y-九年级数学
化简:()。-九年级数学
Up to now, large quantities of food ____ to Africa to save the starving people.A.is sentB.has been s
—Got your driving license?—No. I ____ too busy to have enough practice, so I didn’t take the driving
---Why did you stop writing? --- I _____ my writing paper.A.ran out ofB.have been used up C.have use
The leaders of the company are having a meeting to discuss where the new office building __.A.should
--- Did you go for the Shanghai Expo? ---- I _____ to, but I decided to stay with my sick mother at
Now then, children, it’s right time you ______.A.wash and dressB.are washed and dressedC.will wash a
--- Hi, Tracy, you look tired.--- I’m very tired. I ____ the living room all day.A.paintedB.had pain
He is very sick. I insist that a doctor __________ immediately.A.has been sent forB.sends for C.will
小明作业本上有以下四道题目:①,②;③;④,其中做错的题是[]A.①B.②C.③D.④-九年级数学
–A boy was killed by the tiger in the zoo.–He was believed into the cage while feeding the tiger wit
化简的结果是()。-九年级数学
计算:-八年级数学
计算:-八年级数学
---The window must have taken you quite a lot of time that day. --- You are right. They ________ for
-Why can’t I smoke here? --At no time__________ in the dormitory.A.is smoking permittedB.smoking is
The mother as well as her two children ________shopping in the supermarket near their house every we
Two years has passed since I ______you the first time.A.meetB.have metC.metD.had met-高三英语
计算:﹣(+)-八年级数学
Don’t call me at three to four o’clock this afternoon. I the patient at that time.A.am treatingB.hav
计算:(1);(2)。-九年级数学
的结果是[]A.B.C.D.2-九年级数学
计算:。-八年级数学
返回顶部
题目简介
计算:(1);(2);(3);(4);(5);(6)()。-七年级数学
题目详情
(1)
(2)
(3)
(4)
(5)
(6)
答案