5.6*69.32+138.64*0.05+693.2*0.43 简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 01:00:32
5.6*69.32+138.64*0.05+693.2*0.43简便运算5.6*69.32+138.64*0.05+693.2*0.43简便运算5.6*69.32+138.64*0.05+693.2*

5.6*69.32+138.64*0.05+693.2*0.43 简便运算
5.6*69.32+138.64*0.05+693.2*0.43 简便运算

5.6*69.32+138.64*0.05+693.2*0.43 简便运算
=5.6*69.32+(200-69.32)*0.05+69.32*4.3
=.

=69.32*5.6+69.32*2*0.05+69.32*10*0.43 = 69.32*(5.6+0.1+4.3)=69.32*10=693.2

用计算器呗

5.6*69.32+138.64*0.05+693.2*0.43
=5.6*69.32+69.32*0.1+69.32*4.3
=69.32*(5.6+0.1+4.3)
=69.32*10
=693.2

138.64*0.05变为6.932*1=69.32*0.1
693.2*0.43 变为 69.32*4.3
5.6*69.32即为: 69.32*5.6
综合可知:原式=69.32*10=693.2

5.6*69.32+138.64*0.05+693.2*0.43 =5.6*69.32+69.32*2*0.05+69.32*10*0.43 =5.6*69.32+69.32*0.1+69.32*4.3 =69.32*(5.6+0.1+4.3) =69.32*10 =693.2