简算:34.5×76.5-345×6.42-12.3×14.5

来源：学生作业帮助网编辑：作业帮时间：2024/11/15 11:36:29

简算:34.5×76.5-345×6.42-12.3×14.5
简算:34.5×76.5-345×6.42-12.3×14.5

简算:34.5×76.5-345×6.42-12.3×14.5
34.5×76.5-345×6.42-12.3×14.5
=34.5×76.5-34.5×64.2-12.3×14.5
=34.5×(76.5-64.2)-12.3×14.5
=34.5×12.3-12.3×14.5
=(34.5-14.5)×12.3
=20×12.3
=246

数学不及格，路过。。。

34.5x76.5-345x6.42-12.3x14.5
=34.5x76.5-34.5x64.2-12.3x14.5
=34.5x(76.5-64.2)-12.3x14.5
=34.5x12.3-12.3x14.5
=12.3x(34.5-14.5)
=12.3x20
=246

简算:34.5×76.5-345×6.42-12.3×14.5 34.5*76.5-345*6.42-123*1.45 34.5*8.23-34.5+0.277*345简算 34.5乘76.5-345乘6.42-123乘1.45 34.5*76.5-345*6.42-123*1.45的简算 34.5×76.5×－345×6.42－123×1.45 要简算 34.5×76.5-345×6.42-123×1.45（简便算法） 34.5乘76.5减345乘6.42减123乘1045简便方法 34.5*76.5-345*6.42-123*1.45用简便方法怎算 34.5*76.5-123*1.45-345*6.42如何简算?如何简算?过程详细不要把重要的忽略了! 34.5*6.23-34.5+1.77*34.5简算 1.7*24.5+0.7*76.5-0.7简算 0.7*24.5+0.7*76.5-0.7简算请问“34.5乘76.5--34.5乘6.42-123乘1.45”怎样才能简便计算 345一77+23简算 358+153*42-345简算 345-(427-274)j简算 6.4*1.01简算