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)(10-9.6)0-(-2)-2-(-1)2012(2)(-2x)3-3xy2(3)(-0.125)999×81000(4)(a+4)(a-4)-(a-1)2.-数学
计算:(1)(10-9.6)0-(-2)-2-(-1)2012(2)(-2x)3-3xy2(3)(-0.125)999×81000(4)(a+4)(a-4)-(a-1)2.-数学
题目简介
计算:(1)(10-9.6)0-(-2)-2-(-1)2012(2)(-2x)3-3xy2(3)(-0.125)999×81000(4)(a+4)(a-4)-(a-1)2.-数学
题目详情
计算:
(1)(10-9.6)
0
-(-2)
-2
-(-1)
2012
(2)(-2x)
3
-3xy
2
(3)(-0.125)
999
×8
1000
(4)(a+4)(a-4)-(a-1)
2
.
题型:解答题
难度:中档
来源:不详
答案
(1)原式=1-
class="stub"1
4
-1=-
class="stub"1
4
;
(2)原式=-8x3•3xy2=-24x4y2;
(3)原式=(-0.125)999×8999×8=(-0.125×8)999×8=-1×8=-8;
(4)原式=a2-16-(a2-2a+1)=a2-16-a2+2a-1=2a-17.
上一篇 :
计算题x(1)(14)-1+(5)0-|2-5|(2)2x2-1+
下一篇 :
计算:(1)(42-36)÷22;(2)12+27-(23-1
搜索答案
更多内容推荐
Your composition is well-written ______ a minor spelling mistake.A.besideB.besidesC.except thatD.ex
计算:20110+(13)-1=______.-数学
Success means working hard, but working hard doesn’t mean success.A.certainlyB.necessarilyC.probably
He had to take the medicine three times a day, so as to be _____ the pain in the leg. A.far fromB.a
All the classmates were _______my suggestion that we read English every day.A.in case ofB.in favor o
Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour w
计算(2-3)-1-(12+1)+(3+2)0.-数学
计算:(112)-1+(3+1)(3-2)-(46-18)÷42.-数学
计算:(12)-2-6sin30°+(-2)0+|2-8|.-数学
(-1615)-2=______;(x-12)2=______.-数学
His parents, , didn’t look after him very well—the elbows of his jacket and his boots were badly wor
— Did you remember to give Mary the money you owed her?— Yes, I gave it to her ________ I saw her.A.
Running a company is not _______ a matter of hiring people — they also need to be trained.A.simplyB.
Led by the Party, ___ we fight firmly with one heart and one mind, depending upon science, we will s
He rarely switches on to hear any of the classical music he claims to be so keen ____. A.toB.onC.by
There was __ traffic that nobody could move.A.so manyB.such greatC.so muchD.such many-英语
计算:(1)(x2-y)5•(-y2x)•(1xy)7(2)(m4n-4m-1n)-3÷(m-2n2mn-1)5.-数学
People try to avoid public transportation delays by using their own cars, and this _________ creates
计算:27-|1-tan60°|+(π-3.14)0-(12)-1.-数学
ba-b+ab-a+(π-3)0=______.-数学
The ________ fact is that some European countries are heavily in debt, ________China’s economy is ge
By making friends with the native speakers, one can ________ a lot of their language.A.pick upB.take
It’s always difficult being in a foreign country, ___________if you can’t speak the language.A.extre
When drinking______ someone’s health,you raise your glasses,but the glasses should not touch.A.toB.f
Bicycling is good exercise, ________, it does not pollute the air. [ ]A. neverthelessB. besidesC. ot
Right now you may not know how relevant English learning is _________ your future.A.toB.towardsC.inD
(1)计算:|-2|-116+(-2)-2-(3-2)0.(2)解方程:x+5x2-x-3x=6x-1.-数学
计算:12+(12)-1-|3-2|-(π-3)0.-数学
He argued ______ smoking, and insisted that it was ______argument that smoking was harmful to health
计算:|-1|+3-2-20070.-数学
------ Who knows the meaning of the saying “ Time __________ will tell.” ------ __________ Tom knows
The meaning of a word can be guessed according to the context, so you will not __________ refer to a
计算:a3b2÷(a-1b2)=______.-数学
计算:23-1+12-(3+1)0.-数学
Tom’s teacher and classmates all knew Tom would not do well, but he succeeded _________ their expec
The crowds had all gone home and the street was quiet ________.[ ]A. any moreB. no longerC. any long
计算(1)|-2|+(13)-1×(π-2)0-9+(-1)2(2)a-2a+3÷a2-4a2+6a+9.-数学
---I can only spare ten minutes for you . Could you speak your plan ____? ---OK. All right. A.in gen
(1)化简1x÷1x2+x;(2)计算:2-(π-1)0-2×(12)+(14)-1-数学
(1)计算:(12)-2-23×0.125+20040+|-1|(2)化简:m22-m+3-mm-2-m+12-m-数学
One of the customs officers, who was watching the arrivals very ________, saw feathers ________ from
—I’m driving to Beijing after breakfast. —Take care,with all this fog.A.especiallyB.mainlyC.extreme
They have a small apartment______ the third floor of a _____ apartment block.A.in ; five- storeyB.o
—Will you accept his proposal?—Me?____.He is the last man in the world I want to marry.A.not likelyB
Millions of people have been thrown ________ due to the global economic depression.A.out of placeB.o
According to the embarrassing situation here, I’m afraid that your arrival at present is not quiet _
计算:(12)-1-2sin45°+|1-2|.-数学
There are several people who have called _______ the advertisement we placed in yesterday’s newspape
化简(-1)-1的结果是()A.-1B.1C.0D.-1或1-数学
计算:(-1)0+(12)-1=______.-数学
返回顶部
题目简介
计算:(1)(10-9.6)0-(-2)-2-(-1)2012(2)(-2x)3-3xy2(3)(-0.125)999×81000(4)(a+4)(a-4)-(a-1)2.-数学
题目详情
(1)(10-9.6)0-(-2)-2-(-1)2012
(2)(-2x)3-3xy2
(3)(-0.125)999×81000
(4)(a+4)(a-4)-(a-1)2.
答案
(2)原式=-8x3•3xy2=-24x4y2;
(3)原式=(-0.125)999×8999×8=(-0.125×8)999×8=-1×8=-8;
(4)原式=a2-16-(a2-2a+1)=a2-16-a2+2a-1=2a-17.