A.1000,970,200,180,40,30,( ),( ) B.0,1,3,8,21,55,( ),( ) C.1,2,5,13,34,89,( ),( )

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A.1000,970,200,180,40,30,( ),( ) B.0,1,3,8,21,55,( ),( ) C.1,2,5,13,34,89,( ),( )

A.1000,970,200,180,40,30,( ),( ) B.0,1,3,8,21,55,( ),( ) C.1,2,5,13,34,89,( ),( )
A.1000,970,200,180,40,30,( ),( ) B.0,1,3,8,21,55,( ),( ) C.1,2,5,13,34,89,( ),( )

A.1000,970,200,180,40,30,( ),( ) B.0,1,3,8,21,55,( ),( ) C.1,2,5,13,34,89,( ),( )
A:
1000 970 200 180 40 30 (8) (8)
首先:
1000-970=30
200 -180=20
40 - 30=10
() - ()=0
解法(1)再看:
180-(970-200*4)=10
30 -(180-40 *4) =10
() - (30 -() *4) =10
解得()=()=8
解法(2)
1000/200=5
200/40=5
40/()=5
解得()=()=8
B:
0 1 3 8 21 55 (144) (377)
1-0=1
3-1=2
8-3=5
21-8=13
55-21=34
144-55=89
377-144=233
其差输列1 3 8 21 55 144 377
和C相同具体解法见C
C;
1 2 5 13 34 89 (233) (610)
1=1
1+1=2
2+2+1=5
5+5+2+1=13
13+13+5+2+1=34
34+34+13+5+2+1=89
89+89+34+13+5+2+1=233
233+233+89+34+13+5+2+1=610