25*9*2*7的简便方法?

2025-06-27 22:38:18
推荐回答(2个)
回答1:

25*9*2*7
=25*2*9*7
=50*9*7
=50*63
=3150

回答2:

25x9x2x7=(25x2)x(9x7)
=100x63
=6300