66乘以0.88加33乘以0.24 怎么简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/14 05:41:28
66乘以0.88加33乘以0.24怎么简便运算66乘以0.88加33乘以0.24怎么简便运算66乘以0.88加33乘以0.24怎么简便运算33*(2*0.88+0.24)=33*[2*(1-0.12)

66乘以0.88加33乘以0.24 怎么简便运算
66乘以0.88加33乘以0.24 怎么简便运算

66乘以0.88加33乘以0.24 怎么简便运算
33*(2*0.88+0.24) =33*[2*(1-0.12)+0.24] =33*2

66*0.88+33*0.24=33(2*0.88+0.24)=33*(1.76+0.24)33*2=66

66*0.88+33*0.24
=33(2*0.88+0.24)
=33*(1.76+0.24)33*2
=66
用加法结合律(或者说是提公因式法)
祝学习愉快!