25ᘧ࿾46锧50ᘧ࿾27的间便方法怎么做?

2024-11-10 05:58:16
推荐回答(2个)
回答1:

解:原式=25x46+25x2x27
=25x46+25x54
=25x(46+54)
=25x100
=2500

回答2:

解:25x46+50x27
=25x2x23+50x27
=50x23+50x27
=50x(23+27)
=50x50
=2500