0.45×0.45+0.45×0.55简便计算

2024-11-23 03:28:53
推荐回答(4个)
回答1:

0.45×0.45+0.45×0.55=0.45(0.45+0.55)=0.45

回答2:

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

回答3:

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

回答4:

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