1,6,7,12,13,( ),( )找规律填数

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 11:27:19
1,6,7,12,13,(),()找规律填数1,6,7,12,13,(),()找规律填数1,6,7,12,13,(),()找规律填数1,6,7,12,13,(19),(20)18,19偶次加五,奇次加

1,6,7,12,13,( ),( )找规律填数
1,6,7,12,13,( ),( )找规律填数

1,6,7,12,13,( ),( )找规律填数
1,6,7,12,13,( 19),(20 )

18,19
偶次加五,奇次加一

18、19

18 19

(18). (19)

1,6,7,12,13,(18 ),(19 )找规律填数

问题:1,6,7,12,13,( ),( )找规律填数
解:把这些数分成2组
(1)1,7,13,()
(2)6,12,()
这两个都是等差数列,
(1)应该是1,7,13,(19)
(2)应该是6,12,(18)
合起来就是1,6,7,12,13,18,19