问题 解答题
怎样简便就怎样算
35.6+(12.6-4.4)90÷0.4÷2.50.86×15.4-14.4×0.86
5.4÷0.6+(2.3-0.46)7.52×10.11.25×0.7×0.8.
答案

(1)35.6+(12.6-4.4),

=35.6+8.2,

=43.8;

(2)90÷0.4÷2.5,

=90÷(0.4×2.5),

=90÷1,

=90;

(3)0.86×15.4-14.4×0.86,

=0.86×(15.4-14.4),

=0.86×1,

=0.86;

(4)5.4÷0.6+(2.3-0.46),

=5.4÷0.6+1.84,

=9+1.84,

=10.84;

(5)7.52×10.1,

=7.52×(10+0.1),

=7.52×10+7.52×0.1,

=75.2+0.752,

=75.952;

(6)1.25×0.7×0.8,

=1.25×0.8×0.7,

=1×0.7,

=0.7.

计算题
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