99乘68怎样简便计算
问题描述:
99乘68怎样简便计算
答
99×68
=(100-1)×68
=100×68-68
=6800-68
=6732
99乘68怎样简便计算
99×68
=(100-1)×68
=100×68-68
=6800-68
=6732