怎样简便怎样算99*72+78
问题描述:
怎样简便怎样算99*72+78
答
99*72+78
=(99+1)*72+(78-72)
=7200+6
=7206
怎样简便怎样算99*72+78
99*72+78
=(99+1)*72+(78-72)
=7200+6
=7206