那个简便记算 30
5个回答
展开全部
5.48-(5.4-0.52)
=(5.48+0.52)-5.4
=6-5.4=0.6
56.5×9.9+56.5
=56.5×9.9+56.5×1
=56.5×(9.9+1)
=56.5×10.9
=615.85
56.5×9.9
=56.5×(10-0.1)
=56.5×10-56.5×0.1
=565-5.65
559.35
=(5.48+0.52)-5.4
=6-5.4=0.6
56.5×9.9+56.5
=56.5×9.9+56.5×1
=56.5×(9.9+1)
=56.5×10.9
=615.85
56.5×9.9
=56.5×(10-0.1)
=56.5×10-56.5×0.1
=565-5.65
559.35
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
5.48-(5.4-0.52)=6-5.4=0.6
56.5*9.9+56.5=56.5*(9.9+1)=56.5*11-56.5*0.1
56.5*9.9=56.5*(10-0.1)=56.5*10-56.5*0.1
56.5*9.9+56.5=56.5*(9.9+1)=56.5*11-56.5*0.1
56.5*9.9=56.5*(10-0.1)=56.5*10-56.5*0.1
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
2016-01-11 · 知道合伙人教育行家
关注
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