2019小學(xué)四年級數(shù)學(xué)找規(guī)律練習(xí):(八)
【習(xí)題】
先找出規(guī)律,然后在括號里填上適當(dāng)?shù)臄?shù)。
(1)2,2,4,6,10,16,(?? ),(?? )
(2)34,21,13,8,5,(?? ),2,(?? )
(3)0,1,3,8,21,(?? ),144[來源:Zxxk.Com]
(4)3,7,15,31,63,(?? ),(?? )
(5)33,17,9,5,3,(?? )[來源:Z_xx_k.Com]
(6)0,1,4,15,56,(?? )
(7)1,3,6,8,16,18,(?? ),(?? ),76,78
(8)0,1,2,4,7,12,20,(?? )
【答案請看下一頁】



