091207小升初天天练—2
奥数网
2009-12-07 17:30:22
按规律填数:
(1)54321 43215 32154 ( ) 154321
(2) 1,2,3(7) 2,3,4(14) 3,4,5( )
(3)1,4,7,10,( ),16,,( )
(4)1,2,3,7,11,16,( ),29
(5)2,5,4,5,6,5,( ),5
(6)7,8,10,13,17,( )28
