Math worksheet for practicing skip counting series with missing numbers in sequences.

Problem: Complete the Skip Counting Series

The task involves completing sequences of numbers where each sequence follows a specific pattern of skip counting. Let's solve each part step by step.

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#### 1) 19, 22, 25, __, __, __, __, __
- Pattern: The difference between consecutive numbers is \( 3 \).
- Solution:
- \( 25 + 3 = 28 \)
- \( 28 + 3 = 31 \)
- \( 31 + 3 = 34 \)
- \( 34 + 3 = 37 \)
- \( 37 + 3 = 40 \)

Completed Sequence: 19, 22, 25, 28, 31, 34, 37, 40

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#### 2) __, __, 11, __, __, 17, __, 21
- Pattern: The difference between consecutive numbers is \( 2 \).
- Solution:
- Starting from 11 and working backward:
- \( 11 - 2 = 9 \)
- \( 9 - 2 = 7 \)
- Continuing forward from 11:
- \( 11 + 2 = 13 \)
- \( 13 + 2 = 15 \)
- \( 17 + 2 = 19 \)

Completed Sequence: 7, 9, 11, 13, 15, 17, 19, 21

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#### 3) __, __, __, 42, 52, 62, __, __
- Pattern: The difference between consecutive numbers is \( 10 \).
- Solution:
- Starting from 42 and working backward:
- \( 42 - 10 = 32 \)
- \( 32 - 10 = 22 \)
- \( 22 - 10 = 12 \)
- Continuing forward from 62:
- \( 62 + 10 = 72 \)
- \( 72 + 10 = 82 \)

Completed Sequence: 12, 22, 32, 42, 52, 62, 72, 82

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#### 4) __, __, 16, 21, 26, __, __, __
- Pattern: The difference between consecutive numbers is \( 5 \).
- Solution:
- Starting from 16 and working backward:
- \( 16 - 5 = 11 \)
- \( 11 - 5 = 6 \)
- Continuing forward from 26:
- \( 26 + 5 = 31 \)
- \( 31 + 5 = 36 \)
- \( 36 + 5 = 41 \)

Completed Sequence: 6, 11, 16, 21, 26, 31, 36, 41

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#### 5) __, __, 22, __, 28, __, 34, __
- Pattern: The difference between consecutive numbers is \( 2 \).
- Solution:
- Starting from 22 and working backward:
- \( 22 - 2 = 20 \)
- \( 20 - 2 = 18 \)
- Continuing forward from 22:
- \( 22 + 2 = 24 \)
- \( 28 + 2 = 30 \)
- \( 34 + 2 = 36 \)

Completed Sequence: 18, 20, 22, 24, 28, 30, 34, 36

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#### 6) 9, __, 29, __, __, __, __, 79
- Pattern: The difference between consecutive numbers is \( 10 \).
- Solution:
- Starting from 9 and moving forward:
- \( 9 + 10 = 19 \)
- Continuing from 29:
- \( 29 + 10 = 39 \)
- \( 39 + 10 = 49 \)
- \( 49 + 10 = 59 \)
- \( 59 + 10 = 69 \)

Completed Sequence: 9, 19, 29, 39, 49, 59, 69, 79

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#### 7) 14, __, __, __, 22, 24, __, __
- Pattern: The difference between consecutive numbers is \( 2 \).
- Solution:
- Starting from 14 and moving forward:
- \( 14 + 2 = 16 \)
- \( 16 + 2 = 18 \)
- \( 18 + 2 = 20 \)
- Continuing from 24:
- \( 24 + 2 = 26 \)
- \( 26 + 2 = 28 \)

Completed Sequence: 14, 16, 18, 20, 22, 24, 26, 28

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#### 8) __, 3, __, __, __, __, 13, 15
- Pattern: The difference between consecutive numbers is \( 2 \).
- Solution:
- Starting from 3 and working backward:
- \( 3 - 2 = 1 \)
- Continuing forward from 3:
- \( 3 + 2 = 5 \)
- \( 5 + 2 = 7 \)
- \( 7 + 2 = 9 \)
- \( 9 + 2 = 11 \)

Completed Sequence: 1, 3, 5, 7, 9, 11, 13, 15

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#### 9) __, 5, __, __, __, 17, __, 23
- Pattern: The difference between consecutive numbers is \( 2 \).
- Solution:
- Starting from 5 and working backward:
- \( 5 - 2 = 3 \)
- Continuing forward from 5:
- \( 5 + 2 = 7 \)
- \( 7 + 2 = 9 \)
- \( 9 + 2 = 11 \)
- Continuing from 17:
- \( 17 + 2 = 19 \)

Completed Sequence: 3, 5, 7, 9, 11, 17, 19, 23

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#### 10) __, 18, __, __, 33, __, 43, __
- Pattern: The difference between consecutive numbers is \( 5 \).
- Solution:
- Starting from 18 and working backward:
- \( 18 - 5 = 13 \)
- Continuing forward from 18:
- \( 18 + 5 = 23 \)
- \( 23 + 5 = 28 \)
- Continuing from 33:
- \( 33 + 5 = 38 \)
- \( 43 + 5 = 48 \)

Completed Sequence: 13, 18, 23, 28, 33, 38, 43, 48

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#### 11) __, 16, 21, __, 31, __, __
- Pattern: The difference between consecutive numbers is \( 5 \).
- Solution:
- Starting from 16 and working backward:
- \( 16 - 5 = 11 \)
- Continuing forward from 21:
- \( 21 + 5 = 26 \)
- Continuing from 31:
- \( 31 + 5 = 36 \)
- \( 36 + 5 = 41 \)

Completed Sequence: 11, 16, 21, 26, 31, 36, 41

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#### 12) __, 13, __, __, __, 63, 73
- Pattern: The difference between consecutive numbers is \( 10 \).
- Solution:
- Starting from 13 and working backward:
- \( 13 - 10 = 3 \)
- Continuing forward from 13:
- \( 13 + 10 = 23 \)
- \( 23 + 10 = 33 \)
- \( 33 + 10 = 43 \)

Completed Sequence: 3, 13, 23, 33, 43, 63, 73

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Final Answer

\[
\boxed{
\begin{array}{l}
1) \; 19, 22, 25, 28, 31, 34, 37, 40 \\
2) \; 7, 9, 11, 13, 15, 17, 19, 21 \\
3) \; 12, 22, 32, 42, 52, 62, 72, 82 \\
4) \; 6, 11, 16, 21, 26, 31, 36, 41 \\
5) \; 18, 20, 22, 24, 28, 30, 34, 36 \\
6) \; 9, 19, 29, 39, 49, 59, 69, 79 \\
7) \; 14, 16, 18, 20, 22, 24, 26, 28 \\
8) \; 1, 3, 5, 7, 9, 11, 13, 15 \\
9) \; 3, 5, 7, 9, 11, 17, 19, 23 \\
10) \; 13, 18, 23, 28, 33, 38, 43, 48 \\
11) \; 11, 16, 21, 26, 31, 36, 41 \\
12) \; 3, 13, 23, 33, 43, 63, 73 \\
\end{array}
}
\]