(1)20,40,70,130,235,( ) A338 B390 C430 D476 (2)3,3,5,7,27,( ) A145 B118 C153 D172 (3)0,3,-2,1,6,7,( ) A28 B21 C13 D8 (4)1,4,13,36,( ) A56 B79 C89 D97 (5)-6,-5,-4,3,( ) A4 B7 C16 D22 (6)3,0,-2,8,-5,18,(
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![(1)20,40,70,130,235,( ) A338 B390 C430 D476 (2)3,3,5,7,27,( ) A145 B118 C153 D172 (3)0,3,-2,1,6,7,( ) A28 B21 C13 D8 (4)1,4,13,36,( ) A56 B79 C89 D97 (5)-6,-5,-4,3,( ) A4 B7 C16 D22 (6)3,0,-2,8,-5,18,(](/uploads/image/z/6812076-12-6.jpg?t=%EF%BC%881%EF%BC%8920%2C40%2C70%2C130%2C235%2C%EF%BC%88+%EF%BC%89+A338+B390+C430+D476+%EF%BC%882%EF%BC%893%2C3%2C5%2C7%2C27%2C%EF%BC%88+%EF%BC%89+A145+B118+C153+D172+%EF%BC%883%EF%BC%890%2C3%2C-2%2C1%2C6%2C7%2C%EF%BC%88+%EF%BC%89+A28+B21+C13+D8+%EF%BC%884%EF%BC%891%2C4%2C13%2C36%2C%EF%BC%88+%EF%BC%89+A56+B79+C89+D97+%EF%BC%885%EF%BC%89-6%2C-5%2C-4%2C3%2C%EF%BC%88+%EF%BC%89+A4+B7+C16+D22+%EF%BC%886%EF%BC%893%2C0%2C-2%2C8%2C-5%2C18%2C%EF%BC%88)
(1)20,40,70,130,235,( ) A338 B390 C430 D476 (2)3,3,5,7,27,( ) A145 B118 C153 D172 (3)0,3,-2,1,6,7,( ) A28 B21 C13 D8 (4)1,4,13,36,( ) A56 B79 C89 D97 (5)-6,-5,-4,3,( ) A4 B7 C16 D22 (6)3,0,-2,8,-5,18,(
(1)20,40,70,130,235,( )
A338 B390 C430 D476
(2)3,3,5,7,27,( )
A145 B118 C153 D172
(3)0,3,-2,1,6,7,( )
A28 B21 C13 D8
(4)1,4,13,36,( )
A56 B79 C89 D97
(5)-6,-5,-4,3,( )
A4 B7 C16 D22
(6)3,0,-2,8,-5,18,( )
A25 B-6 C11 D-3
(7)1,15,34,63,103,( )
A133 B141 C147 D153
(8)1,2,1,1,0,( )
A1 B2 C0 D-1
(9)3,27,75,147,237,( )
A298 B304 C357 D381
(10)4,8,4,12,8,30,( )
A12 B8 C45 D24
(1)20,40,70,130,235,( ) A338 B390 C430 D476 (2)3,3,5,7,27,( ) A145 B118 C153 D172 (3)0,3,-2,1,6,7,( ) A28 B21 C13 D8 (4)1,4,13,36,( ) A56 B79 C89 D97 (5)-6,-5,-4,3,( ) A4 B7 C16 D22 (6)3,0,-2,8,-5,18,(
(1)20,40,70,130,235,( C )
A338 B390 C430 D476
B+A*3/2=C
(2)3,3,5,7,27,(A )
A145 B118 C153 D172
(A-2)*(B+2)=C
(3)0,3,-2,1,6,7,(A )
A28 B21 C13 D8
A+B+C=1.2.5.14.41
做差1.3.9.27
(4)1,4,13,36,( B )
A56 B79 C89 D97
两次做差6.14.20
(5)-6,-5,-4,3,( D)
A4 B7 C16 D22
(-1,0,1,2,3,)^3-5
(6)3,0,-2,8,-5,18,(B )
A25 B-6 C11 D-3
隔项5.-8.3.-10.1
相加-3.-5.-7.-9
(7)1,15,34,63,103,(C )
A133 B141 C147 D153\
A+C=35,78,137,210
36-1
81-3
144-7
225-15=210
210-63=147
1,3,7,15
2A+1=B
(8)1,2,1,1,0,(A )
A1 B2 C0 D-1
两两相加3.2.1
(9)3,27,75,147,237,(C )
A298 B304 C357 D381
差:24 48 72 90
4*6 6*8 8*9 9*10 10*12
237+120=357
(10)4,8,4,12,8,30,(D )
A12 B8 C45 D24
C/A=1,1.5,2,2.5,3