作业帮(1+0.12+0.34)*(0.12+0.34+0.56)-(1+0.12+0.34+0.56)*(0.12+0.34
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/07/08 22:05:39
(1+0.12+0.34)*(0.12+0.34+0.56)-(1+0.12+0.34+0.56)*(0.12+0.34)用简便算法怎么算急!
减号前后的等式分别分拆为：
(1+0.12+0.34)*(0.12+0.34+0.56)
=(1+0.12+0.34)*(0.12+0.34)+(1+0.12+0.34)*0.56
(1+0.12+0.34+0.56)*(0.12+0.34)
=(1+0.12+0.34)*(0.12+0.34)+0.56*(0.12+0.34)
两个相减 等式简化为
(1+0.12+0.34)*0.56-0.56*(0.12+0.34)
=1*0.56+(0.12+0.34)*0.56-0.56*(0.12+0.34)
=0.56
最后得到答案 0.56
(1+0.12+0.34)*(0.12+0.34+0.56)
=(1+0.12+0.34)*(0.12+0.34)+(1+0.12+0.34)*0.56
(1+0.12+0.34+0.56)*(0.12+0.34)
=(1+0.12+0.34)*(0.12+0.34)+0.56*(0.12+0.34)
两个相减 等式简化为
(1+0.12+0.34)*0.56-0.56*(0.12+0.34)
=1*0.56+(0.12+0.34)*0.56-0.56*(0.12+0.34)
=0.56
最后得到答案 0.56
(1+0.12+0.34)*(0.12+0.34+0.56)-(1+0.12+0.34+0.56)*(0.12+0.34
(1+0.12+0.34)x(0.12+0.34+0.56)-(1+0.12+0.34+0.56)x(0.12+0.34
求｛1+0.12+0.34｝*｛0.12+0.34+0.56｝-｛1+0.12+0.34+0.56｝*｛0.12+0.3
求（1+0.12+0.34）乘（0.12=0.34=0.56）-（1=0.12=0.34=0.56）乘（0.12+0.3
（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+0.34)X(0.12+0.2
求解(1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.
计算.要简便 (1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.
1-0.12+2分之1-0.34+3分之1-0.56+5分之1-0.78=?用简算
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89=?
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位 《2》
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位