找规律练习题一、按规律画图(4)仔细观察下图,接着画(5)观察下图的变化,想一想第4幅图应画上怎样的图形?二、找找下列各数列的规律,在括号内填上合适的数。(1)1,3,5,( ),9(2)1,4,( ),10,13,( ) ,( )(3)1,5,( ),13,( ) ,( )(4)2,4,( ),( ),12,( )(5)1,7,( ),19,( ),31,( )43(6)5,10,( ),20,( ),30,( ),35,( )(7)3,6,9,( ),( ),18,( ),24(8)2,6,10,( ),( ),22,( ),( ),32,( )(9)35,30,( ),( ),15,( ),( )(10)50,40( ),( ),( )(11)65,60,( ),( ),( ),40,( ),( ),( )(12)57,50,( ),( ),( ),22,( ).( ),13(14)66,61,( ),( ),46,( ),( ),31,( )(15)5,15,( ),( ),( ),55,( ),( )(16)95,85,( ),( ),55,( ),( ),25,( ),( )(17)22,20,( ),( ),( ),12,( ),( ),( ),( )1