找规律,填一填 1,3,9,27,81,,,,.1,2,6,24,,,.3,15,75,,,

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找规律,填一填 1,3,9,27,81,,,,.1,2,6,24,,,.3,15,75,,,

找规律,填一填 1,3,9,27,81,,,,.1,2,6,24,,,.3,15,75,,,
找规律,填一填 1,3,9,27,81,,,,.1,2,6,24,,,.3,15,75,,,

找规律,填一填 1,3,9,27,81,,,,.1,2,6,24,,,.3,15,75,,,
① 1 x 3 =3
3 x3 =9
9 x 3 =27
27 x3=……
② 1 x 2 = 2
2 x 3 = 6
6 x 4 = 24
24 x 5 =……
③ 3 x 5 = 15
15 x 5 = 75
75 x 5 = ……

都乘以3 243 729 2187
乘以5,乘以7 乘以9
120 840 7560
乘以7,9,11
675 6075 66825
答题不易,望采纳,祝学习进步

1,3,9,27,81,243 ,729 ,2187 ,6561 。

1,2,6,24,120 ,720 ,5040 。

3,15,75,375 ,1875 ,