简便计算:302×99+138 = = =

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/17 03:50:44
简便计算:302×99+138===简便计算:302×99+138===简便计算:302×99+138===302×99+138=302*(100-1)+138=30200-302+138=30338

简便计算:302×99+138 = = =
简便计算:302×99+138 = = =

简便计算:302×99+138 = = =
302×99+138
=302*(100-1)+138
=30200-302+138
=30338-302
=30036

原式=302*100-302+138=30036