25x(75一9)的简便方便计算方法?

2025-04-03 03:36:56
推荐回答(2个)
回答(1):

25x(75一9)
=25x(70+5-10+1)
=25x(60+6)
=25x60+25x6
=1500+150
=1650

回答(2):