用简便算法:3.64×0.8 6.36×0.8-3.8
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/17 08:15:45
用简便算法:3.64×0.86.36×0.8-3.8用简便算法:3.64×0.86.36×0.8-3.8用简便算法:3.64×0.86.36×0.8-3.83.64×0.8+6.36×0.8-3.8=
用简便算法:3.64×0.8 6.36×0.8-3.8
用简便算法:3.64×0.8 6.36×0.8-3.8
用简便算法:3.64×0.8 6.36×0.8-3.8
3.64×0.8+6.36×0.8-3.8
=(3.64+6.36)×0.8-3.8
=10×0.8-3.8
=8-3.8
=4.2