0.8888×0.3+0.1111×5.6的简便计算

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0.8888×0.3+0.1111×5.6的简便计算
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0.8888×0.3+0.1111×5.6的简便计算
0.8888×0.3+0.1111×5.6的简便计算

0.8888×0.3+0.1111×5.6的简便计算
0.8888×0.3+0.1111×5.6
=0.8888×0.3+0.1111×8X0.7
=0.8888X(0.3+0.7)
=0.8888