()()-()+()()×()×()+()()在括号中填入1到9的数字怎么得19
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![()()-()+()()×()×()+()()在括号中填入1到9的数字怎么得19](/uploads/image/z/12512065-49-5.jpg?t=%EF%BC%88%EF%BC%89%EF%BC%88%EF%BC%89%EF%BC%8D%EF%BC%88%EF%BC%89%EF%BC%8B%EF%BC%88%EF%BC%89%EF%BC%88%EF%BC%89%C3%97%EF%BC%88%EF%BC%89%C3%97%EF%BC%88%EF%BC%89%EF%BC%8B%EF%BC%88%EF%BC%89%EF%BC%88%EF%BC%89%E5%9C%A8%E6%8B%AC%E5%8F%B7%E4%B8%AD%E5%A1%AB%E5%85%A51%E5%88%B09%E7%9A%84%E6%95%B0%E5%AD%97%E6%80%8E%E4%B9%88%E5%BE%9719)
()()-()+()()×()×()+()()在括号中填入1到9的数字怎么得19
()()-()+()()×()×()+()()在括号中填入1到9的数字怎么得19
()()-()+()()×()×()+()()在括号中填入1到9的数字怎么得19
(2)(1)-(6)+(4)(7)×(5)×(8)+(9)(3)=1988
计算:(+1)+(-3)+(+5)+(-7)+⋯+(+97)+(-99)
(+1)+(-2)+(+3)+(-4)++(+99)+(-100)等于几?
(-2.48)+(+4.33)+(-7.52)+(-4.33)=
计算:(-6)-(+5)+(-9)+(-4)-(-9)
(-2)+4+(-6)+8++(-98)+100等于几?
1+(-2)+3+(-4)+5+(-6)+…+2003+(-2014)
(-1)+2+(-3)+4+(-5)+6+⋯+2010+(-2011)
|+(-5)| 绝对值
(+23)+(-27)+(+9)+(-5)快!脱式计算!
(-42)+57+(-84)+(-23)
(-90)+(-89)+(-88)+…+(+99)+(+100)怎么算?
- |- 0.25 |+(+4分之3)-(-0.125)+|-0.75|
(﹣2)+(﹣77)+(+23.5)-(12.5)-(+27)=?】
1+(-2)+3(-4)+5+(-6)+……+2003+(-2014)简便计算
在括号里填质数()+()+()+()+()+()+()=()+()+()+()+()+()=()+()+()+()+()=()+()+()+()=()+()+()+(
用简便方法计算(-1)+(+2)+(-3)……+(-99)+(+100)
(+14)+(-4)+(-2)+(+26)+(-3) 用有理数加法德运算律计算
(-1)+(+2)+(-3)……+(+2008)+(-2009)=