问题 解答题

用你喜欢的方法计算:

(1)70.8-1.25-1.75

(2)(8+0.8)×1.25

(3)9.4×[0.96÷(5.4÷0.9)].

答案

(1)70.8-1.25-1.75,

=70.8-(1.25+1.75),

=70.8-3,

=67.8;

(2)(8+0.8)×1.25,

=8×1.25+0.8×1.25,

=10+1,

=11;

(3)9.4×[0.96÷(5.4÷0.9)],

=9.4×[0.96÷6],

=9.4×0.16,

=1.504.

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