8个回答
展开全部
1.23×2.45-1.22×2.46=1.23×2.45-1.22×（2.45+0.01）=1.23×2.45-1.22×2.45-1.22×0.01=0.01×2.45-1.22×0.01=0.01×（2.45-1.22）=0.01×1.23=0.0123
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
1.23×2.45-1.22×2.46
=(1.22+0.01)×2.45-1.22×(2.45+0.01)
=1.22×2.45+0.01×2.45-1.22×2.45-1.22×0.01
=0.01×2.45-1.22×0.01
=0.01×(2.45-1.22)
=0.01×1.23
=0.0123
=(1.22+0.01)×2.45-1.22×(2.45+0.01)
=1.22×2.45+0.01×2.45-1.22×2.45-1.22×0.01
=0.01×2.45-1.22×0.01
=0.01×(2.45-1.22)
=0.01×1.23
=0.0123
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
1.23*2.45-1.22*2.46
=1.22×2.45-1.22×2.46+0.01*2.45
=1.22*（2.45-2.46）+0.0245
=0.0245-0.0122
=0.0123
=1.22×2.45-1.22×2.46+0.01*2.45
=1.22*（2.45-2.46）+0.0245
=0.0245-0.0122
=0.0123
本回答被网友采纳
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
