2个回答
2017-07-17 · 知道合伙人教育行家
关注
展开全部
(8.5-5.7)×2.15+0.8
=(8.5-5.5-0.2)×2.15+0.8
=(3-0.2)×2.15+0.8
=3×2.15-0.2×2.15+0.8
=6.45-0.43+0.8
=6.02+0.8
=6.82
=(8.5-5.5-0.2)×2.15+0.8
=(3-0.2)×2.15+0.8
=3×2.15-0.2×2.15+0.8
=6.45-0.43+0.8
=6.02+0.8
=6.82
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询