71又15/16*（-8）简便算法
71又15/16是变成70+1又15/16吗
人气：234 ℃ 时间：2020-01-30 20:36:29
解答
71又15/16*（-8）
=(71+15/16)*(-8)
=71*(-8)+15/16*(-8)
=-568-15/2
=-575.5
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