(1+0.23+0.34)×（0.23+0.34+0.65）-（1+0.23+0.34+0.65）×（0.23+0.34）的巧算

来源：学生作业帮助网编辑：作业帮时间：2024/05/10 08:31:50

(1+0.23+0.34)×（0.23+0.34+0.65）-（1+0.23+0.34+0.65）×（0.23+0.34）的巧算
(1+0.23+0.34)×（0.23+0.34+0.65）-（1+0.23+0.34+0.65）×（0.23+0.34）的巧算

(1+0.23+0.34)×（0.23+0.34+0.65）-（1+0.23+0.34+0.65）×（0.23+0.34）的巧算
(1+0.23+0.34)×（0.23+0.34+0.65）-（1+0.23+0.34+0.65）×（0.23+0.34）
=(0.23+0.34+0.65)+(0.23+0.34)×(0.23+0.34+0.65)-(0.23+0.34)-(0.23+0.34+0.65)×(0.23+0.34)
=0.23+0.34+0.65-0.23-0.34
=0.65

=（1+0.23+0.34）x（0.23+0.34）+（1+0.23+0.34）x0.65-（1+0.23+0.34）x（0.23+0.24）
-0.65x（0.23+0.34）
=0.65+（0.23+0.34）x0.65-0.65x（0.23+0.34）
=0.65

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设A=0.23+0.34，B=0.23+0.34+0.65

原式
=(1+A)×B-(1+B)×A
=B+AB-A-AB
=B-A
=0.23+0.34+0.65-0.23-0.34
=0.65

(1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0.(1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0. 简便计算：(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34) (1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34的简便算是多少简便计算(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34) (1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34的简便算是多少 (1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34) 巧算(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34) (1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34)) (1+0.23+0.34)*(0.23+0.34+0.45)-(1+0.23+0.34+0.45)*(0.23+0.34)简便运算 (1+0.23+0.34)x(0.23+0.34+0.78)-(1+0.23+0.34+0.78)x(0.23+0.34) （1+0.23+0.34）×（0.23+0.34+0.45）-（1+0.23+0.34+0.45）×（0.23+0.34）计算：（1+0.23+0.34）*（0.2903+0.34+0.56）-（1+0.23+0.34+0.56）*（0.23+0.34 简便计算(1+023+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34) 求解(1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.23)=? 简便运算 (1+0.12+0.23)x(0.12+0.23+0.34)-(1+0.12+0.23+0.34)x(0.12+0.23) (1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.23)= （1+0.12+0.23）×（0.12+0.23+0.34）- （1+0.12+0.23+0.34）×（0.12+0.23）. (1+0.12+0.23)X(0.12+0.23+0.34)-(1+0.12+0.23+0.34)X(0.12+0.23)=?