(-3/5)+(-2/5)=?(+1/5)+(-4/5)=?(-3/8)-1/2=?1/6-(-2/3 )=?(+21/5)+(-4/5)=?0.5+(-3/4)+(5.25)+(1/2)(+21/5)+(-4/5)=?的意思是正二又五分之一减负五分之四的和是多少.
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/08 21:11:46
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(-3/5)+(-2/5)=?(+1/5)+(-4/5)=?(-3/8)-1/2=?1/6-(-2/3 )=?(+21/5)+(-4/5)=?0.5+(-3/4)+(5.25)+(1/2)(+21/5)+(-4/5)=?的意思是正二又五分之一减负五分之四的和是多少.
(-3/5)+(-2/5)=?(+1/5)+(-4/5)=?(-3/8)-1/2=?1/6-(-2/3 )=?(+21/5)+(-4/5)=?0.5+(-3/4)+(5.25)+(1/2)
(+21/5)+(-4/5)=?的意思是正二又五分之一减负五分之四的和是多少.
(-3/5)+(-2/5)=?(+1/5)+(-4/5)=?(-3/8)-1/2=?1/6-(-2/3 )=?(+21/5)+(-4/5)=?0.5+(-3/4)+(5.25)+(1/2)(+21/5)+(-4/5)=?的意思是正二又五分之一减负五分之四的和是多少.
(-3/5)+(-2/5)=-1
(+1/5)+(-4/5)=-3/5
(-3/8)-1/2=-7/8
1/6-(-2/3)=5/6
(+21/5)+(-4/5)=17/5
0.5+(-3/4)=1/2+(-3/4)=-1/4
(5.25)+(1/2)=21/4+(1/2)=23/4
5 5 5 5=2 填符号5 5 5 5=3 5 5 5 5=4 5 5 5 5=1
5 5 5 5 5=1 5 5 5 5 5=2 5 5 5 5 5=3 添上加减乘除或括号使等式成立
5-1/5+5^2-1/5+5^3-1/5^3+…+5^n-1/5^n=
找规律的数学题5( )5( )5( )5( )5=0 5( )5( )5( )5( )5=1 5( )5( )5( )5( )5=2 5( )5( )5( )5( )5=3括号中请用加减乘处或括号
在右边各题的等号左边添上合适的运算符号.5 5 5 5 5=0 5 5 5 5 5=1 5 5 5 5 5=2 5 5 5 5 5=3
1=5 2=1 5 3=2 1 5 4=3 2 1 5 5=?
1+2+3+4+5+(-5)+(+5)=
计算(+5/2)-(-5/3)=-5/1(-5/2)-(-5/3)=5/12/1-3/1=6/1(-2/1)-3/1=-6/1
5 5 5 5 5等于0 5 5 5 5 5等于1 5 5 5 5 5等于2 5 5 5 5 5 等于3
1+5+5^2+5^3+5^4+5^5+5^6+…………5^2012=
判断:1/4+2/5+3/5=1/4+(2/5+3/5)对错
5/6十5/6十5/2=? 2/3-2/5-1/6=?
在五个5之间填上适当的运算符号和括号,使下列等式成立.5 5 5 5 5=1 5 5 5 5 5=2 5 5 5 5 5=3
1+5=1 2+5=456 3+5=789 4+5=150 5+1=?
5-3x/2=1-3-5x/3
5x+1/3=2x+5+1/2
5x-1/2-2x-5/3=1
2/5*X-3/5*(X-2/5*X)/(1+3/5)=56