72乘38加28乘38怎样简便计算?
问题描述:
72乘38加28乘38怎样简便计算?
答
72*38+28*38
=38*(72+28)
=38*100
=3800
72乘38加28乘38怎样简便计算?
72*38+28*38
=38*(72+28)
=38*100
=3800