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4.83×0.59+0.41×1.59-0.324×5.9的简便计算
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4.83×0 .59+0.41×1.59-0.324×5.9的简便计算
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答案和解析
4.83×0 .59+0.41×1.59-0.324×5.9
=4.83×0.59+0.41×(1+0.59)+3.24×0.59 (等量变形)
=4.83×0.59+0.41×0.59+0.41+3.24×0.59
=0.59×(4.83+0.41+3.24)+0.41 (提取公因式,并用乘法结合律)
=4.83×0.59+0.41×(1+0.59)+3.24×0.59 (等量变形)
=4.83×0.59+0.41×0.59+0.41+3.24×0.59
=0.59×(4.83+0.41+3.24)+0.41 (提取公因式,并用乘法结合律)
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