5.49+2.68-3.49 简便计算
来源：学生作业帮助网 编辑：六六作业网 时间：2024/07/17 20:22:08
5.49+2.68-3.49简便计算5.49+2.68-3.49简便计算5.49+2.68-3.49简便计算5.49+2.68-3.49=5.49-3.49+2.68=2+2.68=4.685.49+
5.49+2.68-3.49 简便计算
5.49+2.68-3.49 简便计算
5.49+2.68-3.49 简便计算
5.49+2.68-3.49 =5.49-3.49+2.68
=2+2.68
=4.68
5.49+2.68-3.49
=5.49-3.49+2.68
=2+2.68
=4.68