3333x3333+9999x8889怎么算简便

2024-12-30 12:37:29
推荐回答(1个)
回答1:

3333x3333+9999x8889
=1111x3x3333+9999x8889
=1111x9999+9999x8889
=9999x(1111+8889)
=9999x10000
=99990000