18乘29减19乘12简便计算

18乘29减19乘12简便计算
2024-11-15 12:58:00
推荐回答(4个)
回答1:


亲,满意就采纳吧

回答2:

18×29-19×12
=18x29-(29-10)x12
=18x29-12x29+120
=29x(18-12)+120
=29x6+120
=174+120
=294

回答3:


(≧▽≦)

回答4:

18x29-19x12
=18x(30-1)-(20-1)x12
=540-18-240+12
=300-6
=294