计算7.6×199.9+4.3×199.9-19×19.99
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/22 18:28:04
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+4.3×199.9-19×19.997.6×199.9+
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