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0.125×0.32—0.25×0.16 简算
人气：177 ℃　时间：2020-02-18 22:44:00
解答
0.125×0.32-0.25×0.16
=0.125×0.32-0.125×2×0.16
=0.125×0.32-0.125×(2×0.16)
=0.125×0.32-0.125×0.32
=0
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