2.6×11.9-19×26%怎样简便计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 04:39:42
![2.6×11.9-19×26%怎样简便计算](/uploads/image/z/209932-52-2.jpg?t=2.6%C3%9711.9-19%C3%9726%25%E6%80%8E%E6%A0%B7%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
2.6×11.9-19×26%怎样简便计算
2.6×11.9-19×26%怎样简便计算
2.6×11.9-19×26%怎样简便计算
2.6×11.9-19×26%
=2.6×11.9-19×0.26
=0.26×119-19×0.26
=0.26×(119-19)
=0.26×100
=26
2.6×11.9-19×26%
= 2.6×11.9-19÷10×(0.26×10)
=2.6×11.9-1.9×2.6
=2.6×(11.9-1.9)
=2.6×10
=26