1.(-7)+(+11)+3+(-2)= 2.(-1/2)+(-2/3)+(-5/6)= 3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(-7)+(+11)+3+(-2)=(-1/2)+(-2/3)+(-5/6)=1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=

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1.(-7)+(+11)+3+(-2)=2.(-1/2)+(-2/3)+(-5/6)=3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(-7)+(+11)+3+(-2)=(-1/2

1.(-7)+(+11)+3+(-2)= 2.(-1/2)+(-2/3)+(-5/6)= 3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(-7)+(+11)+3+(-2)=(-1/2)+(-2/3)+(-5/6)=1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=
1.(-7)+(+11)+3+(-2)= 2.(-1/2)+(-2/3)+(-5/6)= 3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=
(-7)+(+11)+3+(-2)=
(-1/2)+(-2/3)+(-5/6)=
1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=

1.(-7)+(+11)+3+(-2)= 2.(-1/2)+(-2/3)+(-5/6)= 3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(-7)+(+11)+3+(-2)=(-1/2)+(-2/3)+(-5/6)=1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=
(-7)+(+11)+3+(-2)= 11+3-2-7=5
(-1/2)+(-2/3)+(-5/6)=-(3/6+4/6+5/6)-12/6=-2
1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(1/4-1/4)-(1/3+2/3)+5/6=5/6-1=-1/6

1、(-7)+(+11)+3+(-2)
=11+3-7-2
=5
2.(-1/2)+(-2/3)+(-5/6)
=-3/6-4/6-5/6
=-2
3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)
=1/4-1/4-2/3-1/3+5/6
=0-1+5/6
=1又5/6

1、=-7+11+3-2=5
2、=-1/2-2/3-5/6=-12/6=-2
3、=1/4-2/3+5/6-1/4-1/3=-1/6

(1):原式=-7+11+3-2=5
(2):原式=-1/2-2/3-5/6=-(1/2+2/3+5/6)=-2
(3):原式=1/4-2/3+5/6-1/4-1/3=(1/4-1/4)-(1/3+2/3)+5/6=-1/6

7/11(x+8)=2/3x+4 1.(-7)+(+11)+3+(-2)= 2.(-1/2)+(-2/3)+(-5/6)= 3.1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)=(-7)+(+11)+3+(-2)=(-1/2)+(-2/3)+(-5/6)=1/4+(-2/3)+(+5/6)+(-1/4)+(-1/3)= 7分之1+7分之2+7分之3=7分之2*( )=( )2.19分之1+19分之2+19分之3+19分之4+19分之5=19分之3*( )=( )3.1/11+2/11+3/11+4/11+5/11+6/11+7/11=4/11*( )=( )这三道找规律填空, (1+11分之7)+(2+11分之7*2)+(3+11分之7*3)+.+(11+11分之7*11) 1.(10.5x11.7x57×85)/(1.7×1.9×3×5×7×9×11×13×15)=? 1.(-5又3分之2)+(-2.71)= ,2.(+19又8分之1)加(-11又12分之5)= ,3.(-10.5)+22.3+12.1.(-5又3分之2)+(-2.71)= ,2.(+19又8分之1)加(-11又12分之5)= ,3.(-10.5)+22.3+12.5+20分之7= . 在括号里加上加减乘除和括号,使算式成立1()2()3()4()5=11()2()3()4()5()6=11()2()3()4()5()6()7=11()2()3()4()5()6()7()8=11()2()3()4()5 2 3 4 5 6 7 9 11 12 加减乘 2 3 4 5 6 7 9 11 12 三个式子都成立()+()=()()-()=()()*()=() (90+1/88)*1/89= 13又4/11-(2又2/3-7/11) 计算:(-2又13分之7)*11分之2= (-0.3)*(-1又7分之3)= (3+5+7+9+11+.+2003)—(2+4+6+8+10+.+2002)= 1.解方程(1)|x-3|+5=2x+2 (2)3|x+2|-7=11 2.用两种方法解方程|4x+3|=2x+9求求你啊,指导一下.明天要交了,我不会做啊、1.解方程(1)|x-3|+5=2x+2 (2)3|x+2|-7=11只有这两道.谢谢你们的回答. (1+1|11)+(2+7|11*2)+(3+7|11*3)+.+(11+7|11*11)找规律计算谢谢谁能告诉我过程 1/2+(-2/3)-(-4/5)+(-1/2)=?10/3+(-11/4)-(-5/6)+(-7/12)=?求几个题啊 3x-4/5=1/5(2/5+3/4)-x=11/20x-2/11-9/11=3又7/12 (1)根据规律,在数表中,数a=(),数b=().PS:11 -11 -2 11 -3 3 -11 -4 6 -4 11 -5 10 a 5 -11 -6 15 b -6 1. 1.-3.5×35.2+(-7)×32.4=?2.(-6/5)×83+(-6/5)×(-13)-1.-3.5×35.2+(-7)×32.4=?2.(-6/5)×83+(-6/5)×(-13)-(-6/5)-(6/5)×28=?3.(-2/3)×(-15/11)-2/3×(-15/13)+2/3×(-15/14)=?4.36/1/( 请你把合适的运算符号和括号,填在下面各数之间,使各式结果都等于1.如:1 2 3 =1可写成(1+2)÷3=11 2 3 4 5 =11 2 3 4 5 6 7 =11 2 3 4 5 6 7 8=11 2 3 4 5 6 7 8 9 没有学中括号