1 2 3 4 5 6 7=1填上适当的运算符号及括号,使算式成立.

相关推荐

• 几道初中一元二次不等式题1.已知二次函数的图像经过与x轴交于点（-1,0）和（2,0）,则该二次函数的解析式可设为?2.二次函数y=-x²+2倍根号3x+1的函数图像与x轴两交点之间的距离为?3.根据以下条件,球二次函数解析式①图像经过（1,-2）（0,-3）（-1,-6）②当x=3时,函数有最小值5,且过点（1,11）③函数图像与x轴交于两点（1-根号2,0）（1+根号2,0）,与y轴交与（0,-2）4,求下列抛物线开口方向,对称周,顶点坐标,最大（小）值及y随x的变化情况①y=x²-2x-3②y=1+6x-x²5.若不等式ax²+8ax+21＜0的解集是｛x|-7＜x＜-1｝,a的值是A1 B2 C3 D46.已知二次函数y=x²+px+q,当y＜0时,-1/2＜x＜1/3,解关于x的不等式qx²+px+1＞07.不等式x²+x+k＞0恒成立,k的取值范围麻烦各位了求答案有详细步骤我额外加高分
• 9()8()7()6()5()4()3()2()1=2/35 在括号里填入乘号或除号,使等式成立帮帮我
• 完成对话.在对话空格中填上适当的单词,使对话完整正确.一空一词.（含缩写词）Millie:Can you tell me about your job,Mr.Friend?Mr.Friend:Yes,course.Many students write to me andask me how to solve their 1 .I always give them my 2 and tell them what to do.Millie:What problems do most students have?Mr.Friend:Many can’t 3 when to work and play.In fact,they just needto learn 4 to make a balance 5 study and play.Millie:I 6 .Sometimes,I just get too 7 homework and I really don’t know what to dofir
• 在下表的空白处填上适当的数,使表格的各横行与各竖行的四个数之和相等.1 -3 -4 6-2 （） +7 （）（） 5 （） -8-10 （） （） 9
• 1.求下列和式的值：（+1）+（+2）+（-3）+（-4)+(+5)+(+6)+(-7)+(-8）+···+（+2005）+（+2006）最好要有步骤啊2.在4,5,6,7,8,9这些数字前面分别填上“+”号或“-”,使他们的和为-9,共有多少种不同的方案?
• 在下面算式的九个括号中填入乘号或除号使等式成立.10( )9( )8( )7( )6( )5( )4( )3( )2( ）,1（）等于七分之六十四
• 用括号中词的适当形式填空 It’s imporant（）（obey）the traffic rules I would advise you用括号中词的适当形式填空1.It’s imporant（）（obey）the traffic rules2.I would advise you（）（not buy）that T-shirt.It makes you look fatter3.Everyone must wear（）（suit）clothes on every occasion4.This story is one of（）（intesting ）stories of all5.When you play the game ,you must keep your eyes（）（close）.6.Mother allows me（）（chat） with my friends on the Internet once a week7.（）（hide）in the forest is a good
• 有一种运算符号：⊕使下列算式成立.5⊕3=5+6+7,3⊕4=3+4+5+6 计算：（1）6⊕4 （2）（5⊕4）⊕3
• 完成对话.在对话的空格中填上适当的单词,使对话完整正确.一空一词,按编号把答案填入A：Hello,Paul!B:Hi,Peter!What are you 1._____?A:A report on fashion.Look!Yesterday I showed 2._____ things to some students.Then I asked them about each one,I'm writing down their3._____B:4._____ are the three things?Let me have a 5._____.A:6._____ you are.B:Oh,this watch is becautiful.I like it.What7._____you?A:Me,too.Do you like the scarf?B:oh,8._____A:I don't,either,I really can't 9._____ it.How about this wa
• 根据对话内容,在每个空白处填入一个适当的词,使对话完整A：(1)________ ,Jim!There's a big bag under the tree.B：What's in (2)__________?A:I (3)__________ know.I guess (4)_______ are some books in it.B:(5)_________,I think there (6)_________ a football.A:(7)________ go and open it.B:Ah,there are some books and a football.A:Oh,there's a (8)_______ on the bag-David Smith.B:It's (9)________.Let's go and give him (10)_________ bag.A:Great!Let's go!
• 怎样用运算符号（+ - * /或括号）把4 -6 5 10列成结果为24的算式?越多越好
• 将2,3,-4,-9四个数运用各种运算符号和括号列出算式,是其结果为24.写两个,