
34.5×76.5--345×6.42--123×1.45简便算法
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解:
34.5×76.5-345×6.42-123×1.45
=34.5×(76.5-64.2)-123×1.45
=34.5×12.3-178.35
=424.35-178.35
=246
34.5×76.5-345×6.42-123×1.45
=34.5×(76.5-64.2)-123×1.45
=34.5×12.3-178.35
=424.35-178.35
=246
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