数学怎么巧算
展开全部
0.7x(0.4x2.5)=0.7x1=0.7
0.89x100+0.89x1=89+0.89=89.89
65.4x0.67+6.54x3.1+0.654x2=6.54x6.7+6.54x3.1+6.54x0.2=6.54x(6.7+3.1+0.2)=6.54x1=6.54
0.89x100+0.89x1=89+0.89=89.89
65.4x0.67+6.54x3.1+0.654x2=6.54x6.7+6.54x3.1+6.54x0.2=6.54x(6.7+3.1+0.2)=6.54x1=6.54
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
广告 您可能关注的内容 |