237×198 求简便算法
问题描述：
237×198 求简便算法
答
237*198=（240-3）*（200-2）=48000-600-480+6=46926
答
237×198 =237x200-237x2=47400-474=47000-74=46926
答
237×198
=237x(200-2)
=237x200-237x2
=47400-474
=46926
答
237×198 =237x（200-2）=47400-474=46926