用简便方法计算18.5乘6.2乘0.31
问题描述:
用简便方法计算18.5乘6.2乘0.31
答
18.5×6.2×0.31
=18.5×20×0.31×0.31
=370×0.31×0.31
=370×0.1961
=35.557