123乘以57减57乘以23用简便方法怎样计算

2025-06-29 01:25:53
推荐回答(2个)
回答1:

解:123×57-57×23
=57×(123-23)
=57×100
=5700

回答2:

123×57-57×23
=(123-23)×57
=100×57
=5700