25.5-(1.9+5.5)怎么简便计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 00:46:28
![25.5-(1.9+5.5)怎么简便计算](/uploads/image/z/1715906-2-6.jpg?t=25.5-%281.9%2B5.5%29%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
25.5-(1.9+5.5)怎么简便计算
25.5-(1.9+5.5)怎么简便计算
25.5-(1.9+5.5)怎么简便计算
解由
25.5-(1.9+5.5)
=25.5-1.9-5.5
=25.5-5.5-1.9
=20-1.9
=18.1
去括号 25.5-5.5-1.9=20-1.9=18.1
25.5-(1.9+5.5)
=25.5-5.5-1.9
=20-2+0.1
=18.1