Practice with Patterns



Patterns are important in mathematics.
Here are thirty sequences of numbers or letters.
See how many you can complete!
Enter the number or letter that completes each sequence.
When you have finished, click on the Click here to submit your answers button.

Complete the following patterns:

1.         5,   8,   11,   14,   ___

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2.         3,   6,   9,   12,   ___

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3.         5,   ___,   15,   20,   25,   30

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4.         40,   20,   16,   8,   4,  2,   ___

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5.         1,   5,   20,   24,   ___,   100,   400,   404,   1616

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6.         6,   7,   2,   5,   ___   5,   0,   7,   2

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7.         12,   14,   10,   16,   ___,   18,   6,   20,   4

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8.         F,   S,   T,   F,   F,   S,   ___   E,

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9.         0,   1,   10,   2,   100,   11,   1000,   3,   20,   101,   10000,   12,   100000,   1001,   110,   4,
            1000000,   21,   10000000,   ___

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10.         (1, 2),   (9, 10),   (14, ___)

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11.         (16, 8),   (32, 24),   (20, ___)

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12.         (16, 8),   (32, 16),   (42, ___)

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13.         (4, 6, 24),   (5, 7, 35),   (7, 9, ___)

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14.         e,   f,   e,   f,   c,   d,   g,   h,   g,   h,   c,   d,   i,   j,   ___

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15.         a,   b,   c,   x,   y,   z,   d,   e,   f,   x,   y,   z,   g,   h,   i,   ___

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16.         a,   c,   e,   g,   i,   k,   m,   ___

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17.         a,   b,   b,   c,   c,   c,   d,   d,   d,   d,   e,   e,   e,   e,   ___

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18.         a,   x,   b,   y,   c,   z,   a,   x,   b,   y,   c,   z,   a,   x,   b,   ___

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19.         g,   a,   f,   a,   e,   a,   d,   a,   c,   a,   ___

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20.         a,   b,   c,   a,   c,   d,   a,   d,   e,   a,   ___

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21.         a,   b,   c,   d,   e,   a,   b,   c,   d,   a,   b,   c,   ___

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22.         g,   h,   j,   k,   m,   n,   p,   q,   s,   t,   v,   w,   ___

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23.         a,   b,   c,   c,   b,   a,   d,   e,   f,   f,   e,   d,   g,   h,   i,   ___

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24.         a,   c,   f,   h,   k,   m,   p,   r,   ___

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25.         a,   b,   a,   c,   d,   c,   e,   f,   e,   g,   h,   g,   i,   j,   ___

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26.         a,   b,   c,   a,   b,   c,   d,   a,   b,   c,   d,   e,   ___

Enter your answer:

27.         a,   a,   b,   a,   b,   c,   c,   d,   c,   d,   e,   e,   f,   ___

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28.         a,   b,   c,   a,   d,   e,   f,   d,   g,   h,   i,   g,   j,   k,   l,   ___

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29.         O,   T,   T,   F,   F,   S,   S,   ___

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30.         S,   M,   T,   W,   T,   ___

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