0.034*0.5*0.6 102*0.45 用简便运算

问题描述:

0.034*0.5*0.6 102*0.45 用简便运算

乘法的结合律和分配率:
将0.034*0.5*0.6运用结合律
0.034*(0.5*0.6)
=0.034*0.3
=0.0102
102*0.45运用分配率
(100+2)*0.45
=100*0.45+2*0.45=
45+0.9
=45.9

用计算器撒~

0.034*0.5*0.6
=0.034*0.3
=0.0102
102*0.45
=(100+2)*0.45
=45+0.9
=45.9