9.9x8.8+0.88的简便运算

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9.9x8.5简便运算怎么写?

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9.9x2.8十0.28简便计算

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9.78x99十9.78用简便方法计算

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9.78x99+9.78的简便方法

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9.99x0.8+1.11x2.8用简便方法计算

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9.9x8.8+0.88的简便运算

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9.9x0.81的简便计算

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9.9x8.6+0.86简便计算

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9.8*0.99简便计算

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9.9x1.8简便方法计算

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9.9x8.5简便运算怎么写?

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9.9x2.8十0.28简便计算

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9.78x99十9.78用简便方法计算

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9.78x99+9.78的简便方法

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9.99x0.8+1.11x2.8用简便方法计算

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