55.2-55.2x0.5-0.5的简便运算

解：依题意得算式，
55.2-55.2×0.5-0.5
=55.2×（1-0.5）-0.5
=55.2×0.5-0.5
=（55.2-1）×0.5
=54.2×0.5
=27.1
即55.2-55.2×0.5-0.5=27.1

温馨提示：答案为网友推荐，仅供参考

当前网址：https://verywind.cn/ee/rrryvyf2xyre7j332y.html