求3.6x42.3x3.75-12.5x0.423x28的简便运算
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![求3.6x42.3x3.75-12.5x0.423x28的简便运算](/uploads/image/z/5430446-62-6.jpg?t=%E6%B1%823.6x42.3x3.75-12.5x0.423x28%E7%9A%84%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
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求3.6x42.3x3.75-12.5x0.423x28的简便运算
求3.6x42.3x3.75-12.5x0.423x28的简便运算
求3.6x42.3x3.75-12.5x0.423x28的简便运算
3.6x42.3x3.75-12.5x0.423x28
=1.08x42.3x12.5-12.5x42.3x0.28
=42.3×12.5×(1.08-0.28)
=42.3×12.5×0.8
=42.3×10
=423
求3.6x42.3x3.75-12.5x0.423x28的简便运算
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