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960+16*0.64+9.84*64简便算法?
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960+16*0.64+9.84*64 简便算法?
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答案和解析
=960+16*0.64+984*0.64
=960+(16+984)*0.64
=960+640
=1600
=960+(16+984)*0.64
=960+640
=1600
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