看下面，这些题怎么做，用简单的方法算一下。

=3.27*(6.43+1+2.57)

=3.27*10

=32.7

0.956+2.16-1.176-0.75

=(0.956-0.75) +2.16-1.176

=0.206+ 2.16-1.176

=2.222-1.176

=1.046

0.3-15×(8.4-5.86)÷0.01

=0.3-1500*2.54

=0.3-3810

=-3809.7

(6.1-4.6)×(9-0.4)+(4.1-2.85)

=1.5*8.4+1.25

=12.6+1.25

=13.85

1-[10-(69.696÷3.2)]×1.01

=1-[10-21.78]*1.01

=1+11.78*1.01

=12.8978 .