问题 解答题
计算下面各题,注意使用简便算法.
①0.36+9.6÷3.2②3.2×5.7+6.8×5.7
③25×6.8×0.04④3.75÷〔0.3×(1.34-0.84)〕
答案

①0.36+9.6÷3.2,

=0.36+3,

=3.36;

②3.2×5.7+6.8×5.7,

=(3.2+6.8)×5.7,

=10×5.7,

=57;

③25×6.8×0.04,

=25×0.04×6.8,

=1×6.8,

=6.8;

④3.75÷[0.3×(1.34-0.84)],

=3.75÷[0.3×0.5],

=3.75÷0.15,

=25.

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