45×5.5+45×5.5-1.5×3怎么巧算
13个回答
展开全部
简算方法如下:
45×5.5+45×5.5-1.5×3
=5.5×(45+45)-1.5×3
=5.5×90-4.5
=495-4.5
=490.5
45×5.5+45×5.5-1.5×3
=5.5×(45+45)-1.5×3
=5.5×90-4.5
=495-4.5
=490.5
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
45×5.5+45×5.5-1.5×3
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
45×5.5+45×5.5-1.5×3
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
45×5.5+45×5.5-1.5×3
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
45×5.5+45×5.5-1.5×3
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
=45×5.5+45×5.5-4.5×1
=45×5.5+45×5.5-45×0.1
=45×(5.5+5.5-0.1)
=45×10.9
=490.5
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