10.5*9+10.5的简便计算怎么做
问题描述:
10.5*9+10.5的简便计算怎么做
答
=(9+1)*10.5
=10*10.5
=105
10.5*9+10.5的简便计算怎么做
=(9+1)*10.5
=10*10.5
=105