4+(-3)+(-2)+(-1)+2 (-6)+(-44)+13+17 (-26)+(-22)+9+(-18)+15拜托各位大神
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4+(-3)+(-2)+(-1)+2(-6)+(-44)+13+17(-26)+(-22)+9+(-18)+15拜托各位大神4+(-3)+(-2)+(-1)+2(-6)+(-44)+13+17(-26
4+(-3)+(-2)+(-1)+2 (-6)+(-44)+13+17 (-26)+(-22)+9+(-18)+15拜托各位大神
4+(-3)+(-2)+(-1)+2 (-6)+(-44)+13+17 (-26)+(-22)+9+(-18)+15拜托各位大神
4+(-3)+(-2)+(-1)+2 (-6)+(-44)+13+17 (-26)+(-22)+9+(-18)+15拜托各位大神
4+(-3)+(-2)+(-1)+2 =4-3-2-1+2 =0 (-6)+(-44)+13+17 = -6-44+40 =-50+40 =-10 (-26)+(-22)+9+(-18)+15 =-26-22+9-18+15 =-48-18+24 =-66+24 =42
1()2()3()4
1 2 3 4 ()
(1) (2) (3) (4) (5)
1)2)3)4)5)
1) 2) 3) 4) 5)
-1/2+(-1/6)-(-1/4)-2/3
0-(+2/1)-(+5/2)-(-4/3)-(+4/1)-(-5/3)
(-1/2)-(-1/3)-(+1/4)
4×(-1/2²)-3/2×(-2/5)
1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)
1,2,2,4,3,8,4,16,()()
计算:[2+(2^0)+(2^-1)]/[(2^-2)(2^-3)(2^-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),
(-2.5)-(2,1/4)+2,1/3
(-1/2-2/3+1/4)*(-12)
计算(1)(2)(3)(4)题,