问题 解答题
下面每题,怎样算简便就怎样算
36.8-6.8÷0.50.125×32×0.251.25×8.8
73÷4+2.7×0.253.75÷[0.3×(1.34-0.84)].
答案

①36.8-6.8÷0.5,

=36.8-13.6,

=23.2;

②0.125×32×0.25,

=(0.125×8)×(4×0.25),

=1×1,

=1;

③1.25×8.8,

=1.25×(8+0.8),

=1.25×8+1.25×0.8,

=10+1,

=11;

④73÷4+2.7×0.25,

=73×

1
4
+2.7×0.25,

=(73+2.7)×0.25,

=75.7×0.25,

=18.925;

⑤3.75÷[0.3×(1.34-0.84)],

=3.75÷[0.3×0.5],

=3.75÷0.15,

=25.

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