找规律,98,89,80,71,( ),( )
问题描述:
找规律,98,89,80,71,( ),( )
答
98,89,80,71,(62 ),(53 )
公差是-9
找规律,98,89,80,71,( ),( )
98,89,80,71,(62 ),(53 )
公差是-9