用简便方法计算:57.6×1.6+28.8×36.8-14.4×80
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 19:13:16
![用简便方法计算:57.6×1.6+28.8×36.8-14.4×80](/uploads/image/z/69068-20-8.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%9A57.6%C3%971.6%2B28.8%C3%9736.8-14.4%C3%9780)
用简便方法计算:57.6×1.6+28.8×36.8-14.4×80
用简便方法计算:57.6×1.6+28.8×36.8-14.4×80
用简便方法计算:57.6×1.6+28.8×36.8-14.4×80
57.6×1.6+28.8×36.8-14.4×80
=28.8×3.2+28.8×36.8-28.8×40
=28.8×(3.2+36.8-40)
=28.8×0
=0