1996÷{1996+[1996-(138×8-8)]+(138×8-8)}=______.
1996÷{1996+[1996-(138×8-8)]+(138×8-8)},
=1996÷{1996+1996-(138×8-8)+(138×8-8)},
=1996÷{1996+1996},
=1996÷{1996×2},
=1996÷1996÷2,
=1÷2,
=0.5.
故答案为:0.5.
1996÷{1996+[1996-(138×8-8)]+(138×8-8)}=______.
1996÷{1996+[1996-(138×8-8)]+(138×8-8)},
=1996÷{1996+1996-(138×8-8)+(138×8-8)},
=1996÷{1996+1996},
=1996÷{1996×2},
=1996÷1996÷2,
=1÷2,
=0.5.
故答案为:0.5.