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Riddle

Missing Number Mystery Files

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Missing Number Mystery Files

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About this activity

Pattern-based missing numbers

Created by

Hidden Author
Hidden Author
Lebanon

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Missing Number Mystery Files
 

Missing Number Mystery FilesOnline version

Pattern-based missing numbers

by Hidden Author
1

1, 3, ___, 7, 9, 11

Hints

Identify the skipped value between odd numbers.

Pattern adds 2 to the previous term.

2

1, 3, 5, ___, 9, 11

Hints

Find the number between 5 and 9.

Odd numbers sequence.

3

3, 6, ___, 12

Hints

What number comes after 6 to reach 12 in equal steps?

Pattern increases by a constant amount.

4

15, ___, 11, 9, 7

Hints

Fill the missing term between 15 and 11.

Sequence moves downward by a fixed amount.

5

15, 13, 11, ___, 7

Hints

What number comes after 11 before 7?

Continuing the subtractive pattern.

6

4, 7, ___, 13, 16

Hints

Find the middle term that fits the progression.

Adds 3 each step.

7

4, 7, 10, ___, 16

Hints

Identify the term before 16 that keeps the rhythm.

Consistent addition of 3.

8

20, ___, 12, 8, 4

Hints

What term completes the jump between 20 and 12?

Pattern decreases by 4 each time.

9

20, 16, 12, ___, 4

Hints

Fill the missing value before 4.

Subtract 4 each step.

10

2, 4, 8, 16, ___

Hints

What comes after 16 in a doubling sequence?

Each term doubles the previous one.

 
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