25×49+75×47怎么简便运算?

2024-12-02 17:16:09
推荐回答(5个)
回答1:


如图所示

回答2:

25×49+75×47
=25×47+25×2+75×47
=(25+75)×47+25×2
=100×47+50
=4700+50
=4750

回答3:

=25*49+25*3*47
=25*49+25*141
=25*(49+141)
=25*190
=25*(200-10)
=25*200-25*10
=5000-250
=4750

回答4:

25×(49+3×47)=4750

回答5:

45×49+75×49=49×(25+75)=49X1OO=4900希望可以帮到你们😬😬