三点25×2点8-1点8×3点五二简便运算怎么做?
展开全部
3.25×2.8-1.8×3.52
=3.25×2.8-1.8×(3.25+0.27)
=3.25×(2.8-1.8)-1.8×0.27
=3.25×1-2×0.27+0.2×0.27
=3.25-0.54+0.054
=2.71+0.054
=2.764
=3.25×2.8-1.8×(3.25+0.27)
=3.25×(2.8-1.8)-1.8×0.27
=3.25×1-2×0.27+0.2×0.27
=3.25-0.54+0.054
=2.71+0.054
=2.764
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