550ⅹ64+360ⅹ55怎么巧算?

2025-04-13 04:29:06
推荐回答(2个)
回答1:

550*64+36*550=550*(64+36)=550*100=55000

回答2:

=550x64+36x550
=550x(64+36)
=550x100=55000