1.59×1.9+0.41×1.9-1.9
18.6-[12-0.328×(18.3+6.7)]
63÷[6.5×(3.4-3.32)+2.98]
96.12÷[(7-6.46)×(43.6+56.4)]
[49.84-(53.17-14.56)÷27]÷0.47.
(1)1.59×1.9+0.41×1.9-1.9,
=(1.59+0.41-1)×1.9,
=1×1.9,
=1.9;
(2)18.6-[12-0.328×(18.3+6.7)],
=18.6-[12-0.328×25],
=18.6-[12-8.2],
=18.6-3.8,
=14.8;
(3)63÷[6.5×(3.4-3.32)+2.98],
=63÷[6.5×0.08+2.98],
=63÷[0.52+2.98],
=63÷3.5,
=18;
(4)96.12÷[(7-6.46)×(43.6+56.4)],
=96.12÷[0.54×100],
=96.12÷54,
=1.78;
(5)[49.84-(53.17-14.56)÷27]÷0.47,
=[49.84-38.61÷27]÷0.47,
=[49.84-1.43]÷0.47,
=48.41÷0.47,
=103.