5.67×9.9+0.567简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 21:44:01
5.67×9.9+0.567简便计算

5.67×9.9+0.567简便计算
5.67×9.9+0.567简便计算

5.67×9.9+0.567简便计算
5.67×9.9+0.567
=0.567×99+0.567
=0.567×(99+1)
=0.567×100
=56.7

5.67×9.9+0.567
=5.67×9.9+5.67×0.1
=5.67×(9.9+0.1)
=5.67×10
=56.7

5.67×9.9+0.567
=5.67×9.9+5.675×0.1
=5.67×(9.9+0.1)
=56.7

原式=5.67×9.9+5.67×0.1
=5.67(9.9+0.1)
=5.67×10
=56.7