8.6×5.4+0.86+86×0.45的简便方法

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8.6×5.4+0.86+86×0.45的简便方法8.6×5.4+0.86+86×0.45的简便方法8.6×5.4+0.86+86×0.45的简便方法8.6×5.4+0.86+86×0.45=8.6x

8.6×5.4+0.86+86×0.45的简便方法
8.6×5.4+0.86+86×0.45的简便方法

8.6×5.4+0.86+86×0.45的简便方法
8.6×5.4+0.86+86×0.45
=8.6x5.4+8.6x0.1+8.6x4.5
=8.6x(5.4+0.1+4.5)
=8.6x10
=86
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