14.7+2.15*4.8简便算法

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 20:19:43

14.7+2.15*4.8简便算法
14.7+2.15*4.8简便算法

14.7+2.15*4.8简便算法
14.7+2.15*4.8
=14.7+(2+0.1+0.05)×4.8
=14.7+9.6+0.48+0.24
=25.02

=14.7+2.15*(2+2+0.4+0.4)
=14.7+4.3+4.3+0.86+0.86
=14.7+8.6+1.72
=25.02