5⼀6x5⼀9x6⼀5的简便算法?

2025-06-20 07:51:39
推荐回答(3个)
回答1:

用乘法交换律和结合律计算比较简便。

回答2:

5/6×5/9×6/5
=5/6×6/5×5/9
=1×5/9
=5/9

回答3:

=5/6×6/5×5/9
=1×5/9
=5/9