如题所述
第1个回答 2020-02-03
99x23
=（100-1）x23
=100x23-23
=2300-23
=2277本回答被网友采纳
=（100-1）x23
=100x23-23
=2300-23
=2277本回答被网友采纳
第2个回答 2022-12-10
解：原式=（100-1）x23
=100x23-1x23
=2300-23
=2277
=100x23-1x23
=2300-23
=2277
第3个回答 2020-02-03
99×23
=（100-1））×23
=100×23-1×23
=2300-23
=2277
=（100-1））×23
=100×23-1×23
=2300-23
=2277
