2019小學(xué)四年級(jí)數(shù)學(xué)找規(guī)律練習(xí):(二)
【習(xí)題】
先找出下列各列數(shù)的排列規(guī)律,然后在括號(hào)里填上適當(dāng)?shù)臄?shù)。
(1)2,6,10,14,(??? ),22,26
(2)3,6,9,12,(??? ),18,21
(3)33,28,23,(??? ),13,(??? ),3
(4)55,49,43,(??? ),31,(??? ),19
(5)3,6,12,(??? ),48,(??? ),192
(6)2,6,18,(??? ),162,(??? )
(7)128,64,32,(??? ),8,(??? ),2
(8)19,3,17,3,15,3,(??? ),(??? ),11,3..
【答案請(qǐng)看下一頁】