99×23加99×26加49用简便方法计算怎么算

99×23加99×26加49用简便方法计算怎么算
2025-05-04 20:32:40
推荐回答(2个)
回答1:

99×23+99×26+49
=99×(23+26)+49
=99×49+1×49
=(99+1)×49
=100×49
=4900

回答2:

99x23+99x26+49
=99x23+99x26+23+26
=23x(99+1)+26x(99+1)
=23x100+26x100
=(23+26)x100
=49x100
=4900