计算7.6×199.9+4.3×199.9-19×19.99
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 22:46:46
![计算7.6×199.9+4.3×199.9-19×19.99](/uploads/image/z/957703-31-3.jpg?t=%E8%AE%A1%E7%AE%977.6%C3%97199.9%2B4.3%C3%97199.9-19%C3%9719.99)
计算7.6×199.9+4.3×199.9-19×19.99
计算7.6×199.9+4.3×199.9-19×19.99
计算7.6×199.9+4.3×199.9-19×19.99
7.6×199.9+4.3×199.9-19×19.99
=7.6×199.9+4.3×199.9-1.9×199.9
=(7.6+4.3-1.9)×199.9
=10×199.9
=1999