一年级数学找规律练习题.docx
一年级数学找规律练习题找规律练习题 一、按规律画图 仔细观察下图,接着画 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。 1,3,5,9 1,4,( ),10,13, ,( ) 1,5,( ),13, ,( ) 2,4,( ),12,( ) 1,7,( ),19,( ),31,( )43 5,10,( ),20,( ),30,( ),35, 3,6,9,18,( ),24 2,6,10,( ),( ),22,( ),( ),32,35,30,( ),( ),15,( ),( ) 50,40( ),( ),( ) 65,60,( ),( ),( ),40,( ),( ),( ) 57,50,( ),( ),( ),22,( ).( ),13 66,61,( ),( ),46,( ),( ),31,( ) 5,15,( ),( ),( ),55,( ),( ) 95,85,( ),( ),55,( ),( ),25,( ),( ) 22,20,( ),( ),( ),12,( ),( ),( ),( ) 1