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4.3×0.23+0.43×5.5+11×0.086的简便算法
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4.3×0.23+0.43×5.5+11×0.086的简便算法
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4.3×0.23+0.43×5.5+11×0.086
=4.3×0.23+4.3×0.55+4.3×(2×0.11)
=4.3×(0.23+0.55+0.22)
=4.3×1
=4.3
=4.3×0.23+4.3×0.55+4.3×(2×0.11)
=4.3×(0.23+0.55+0.22)
=4.3×1
=4.3
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