问题 解答题
用递等式计算.
(1)0.6÷0.125÷0.8(2)(100-6.4)÷3.6+5.4
(3)3.9÷(1.3×5)(4)5.04×3.6+50.4×0.64.
答案

(1)0.6÷0.125÷0.8,

=0.6÷(0.125×0.8),

=0.6÷0.1,

=6;

(2)(100-6.4)÷3.6+5.4,

=93.6÷3.6+5.4,

=26+5.4,

=31.4;

(3)3.9÷(1.3×5),

=3.9÷6.5,

=0.6;

(4)5.04×3.6+50.4×0.64,

=5.04×3.6+5.04×6.4,

=5.04×(3.6+6.4),

=5.04×10,

=50.4.

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