作业帮5.6*2.9-5.6+8.1*5.6巧算
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 14:54:14
5.6*2.9-5.6+8.1*5.6巧算
5.6*2.9-5.6+8.1*5.6巧算
5.6*2.9-5.6+8.1*5.6巧算
5.6*2.9-5.6+8.1*5.6
=5.6*（2.9-1+8.1）
=5.6*10
=56
5.6*（2.9-1+8.1）=5.6*（2.9+8.1-1）=5.6*（11-1）=5.6*10=56
5.6*2.9-5.6+8.1*5.6
=5.6×2.9-5.6+8.1×5.6
=5.6×(2.9-1+8.1)
=5.6×10
=56