8+(-2)+(-4)+1+1+(-3)
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8+(-2)+(-4)+1+1+(-3)
8+(-2)+(-4)+1+1+(-3)
8+(-2)+(-4)+1+1+(-3)
8+(-2)+(-4)+1+1+(-3)
8(1)(2)(3)(4)
(1,1,1).(2,4,8)...3Q
()3( ) × ( )6 ------------- 1 ( )( ) 6( ) ( ) 5------------- 8 ( )( ) ( )()3( ) × ( )4 ------------- 2 ( )2 8( )1 ( ) 0------------- 3 ( ) 1 ( ) 8
()2()()()()()8()()()8()5()1()()()1 5 8()4 6 2()2()()1 8 3()()5()()()()4()()()()8()()6 2 5 ()()()15 9 2 4 1 6 7 3 8(
1,2,2,4,3,8,4,16,()()
4/5+(3/8-1/2)
(+3/4)-(+6.25)-(-8 1/2)-(+0.75)-22 1/4=?1
1/2÷【2/3×(1/8+1/4)】
1/2-(3/4-3/8),1/2+1/4-1/6 ,2/3+(1/2+1/4),1/2-(3/4-3/8),1/2+1/4-1/6 ,2/3+(1/2+1/4),
1/2-(3/4-3/8), 1/2+1/4-1/6 , 2/3+(1/2+1/4),1/2-(3/4-3/8), 1/2+1/4-1/6 , 2/3+(1/2+1/4),
1/2-(3/4-3/8),1/2+1/4-1/6 ,2/3+(1/2+1/4),1/2-(3/4-3/8),1/2+1/4-1/6 ,2/3+(1/2+1/4),
9()2()7()8()()()()4()()9()6()1 3()5()()()()24()()8 5()()1()()8 9 4()1 6 7()()1()()3 6()()88()()()()2()3 6()5
2×(3+1)×(3^2+1)×(3^4+1)×(3^8+1)+1=?
(+4/3)-(+8)+(-2 3/4)-(-1 3/2)=过程=?
1/(1*3)+1/(2*4)+1/(3*5)+1/(4*6)+...+1/(8*10)=?
1.(-8)×(-2)+(-1)×(-8)-(-3)×(-8) 2.-21×(3-4╱7)
找规律8、1、4、2、2、3、()、().