用你喜欢的方法计算(简便)
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2017-11-30
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0.2÷(0.2÷0.3)÷(0.3÷0.4)÷(0.4÷0.5)÷(0.5÷0.6)÷(0.6÷0.7)÷(0.7÷0.8)
=0.2÷0.2×0.3÷0.3×0.4÷0.4×0.5÷0.5×0.6÷0.6×0.7÷0.7×0.8
=(0.2÷0.2)×(0.3÷0.3)×(0.4÷0.4)×(0.5÷0.5)×(0.6÷0.6)×(0.7÷0.7)×0.8
=1×1×1×1×1×1×0.8
=0.8
=0.2÷0.2×0.3÷0.3×0.4÷0.4×0.5÷0.5×0.6÷0.6×0.7÷0.7×0.8
=(0.2÷0.2)×(0.3÷0.3)×(0.4÷0.4)×(0.5÷0.5)×(0.6÷0.6)×(0.7÷0.7)×0.8
=1×1×1×1×1×1×0.8
=0.8
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