0.45×0.45+0.45×0.55简便计算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 11:16:24
0.45×0.45+0.45×0.55简便计算0.45×0.45+0.45×0.55简便计算0.45×0.45+0.45×0.55简便计算0.45×0.45+0.45×0.55=0.45(0.45+0

0.45×0.45+0.45×0.55简便计算
0.45×0.45+0.45×0.55简便计算

0.45×0.45+0.45×0.55简便计算
0.45×0.45+0.45×0.55=0.45(0.45+0.55)=0.45

0.45*(0.45+0.55)=0.45*1=0.45

(0.45+0.55)x0.45
=1x0.45
=0.45

0.45*0.45+0.45*0.55
=0.45*(0.45+0.55)
=0.45*1
=0.45