(1/2)按规律填空:[1]1,-2,3,-4,( ),( ),( ) [2]-23,-18,-13,( ),( ),( ) [3]1
问题描述:
(1/2)按规律填空:[1]1,-2,3,-4,( ),( ),( ) [2]-23,-18,-13,( ),( ),( ) [3]1
答
:[1]1,-2,3,-4,(5 ),( -6),(7 )
[2]-23,-18,-13,(-8 ),(-3 ),(2 )