发布网友 发布时间:2024-10-18 19:12
我来回答
共1个回答
热心网友 时间:2024-11-10 01:54
答: 99x22+33x24 =99x22+33x3x8 =99x22+99x8 =99x(22+8) =99x30 =(100-1)x30 =100x30-1x30 =3000-30 =2970