简便计算 45×55+55×55

2024-11-16 00:52:36
推荐回答(4个)
回答1:

55*(45+55)=55*100=5500

回答2:

55*(45+55)=55*100=5500

回答3:

=(45+55)X55
=100X55
=5500

回答4:

=(45+55)*55
=100*55
=5500