问题 解答题

递等式计算(能简算的要简算).

(1)3÷0.05÷0.01

(2)13.8÷(23×0.5)

(3)1.053÷0.81-0.81

(4)59÷2.5÷0.4.

答案

(1)3÷0.05÷0.01,

=3÷(0.05×0.01),

=3÷0.0005,

=6000;

(2)13.8÷(23×0.5),

=13.8÷11.5,

=1.2;

(3)1.053÷0.81-0.81,

=1.3-0.81,

=0.49;

(4)59÷2.5÷0.4,

=59÷(2.5×0.4),

=59÷1,

=59.

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