Let’s solve each number pattern one by one. We’re looking for the missing numbers that fit the sequence — usually, it’s counting up by 1 each time.
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Problem 1:
8, 9, 10, __, 12, 13, __, 15
We count: after 10 comes 11, then 12, 13, then 14, then 15.
So blanks are
11 and
14
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Problem 2:
12, 13, __, 15, 16, __, 18, __
After 13 is 14 → then 15, 16 → next is 17 → then 18 → then 19
Blanks:
14,
17,
19
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Problem 3:
10, __, 12, 13, __, 15, 16, __
After 10 is 11 → then 12, 13 → next is 14 → then 15, 16 → then 17
Blanks:
11,
14,
17
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Problem 4:
13, 14, 15, __, 17, 18, __, 20
After 15 is 16 → then 17, 18 → next is 19 → then 20
Blanks:
16,
19
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Problem 5:
__, 11, 12, __, 14, 15, __, 17
Before 11 is 10 → after 12 is 13 → after 15 is 16 → then 17
Blanks:
10,
13,
16
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Problem 6 (Christmas ornaments):
9, __, __, 12, __, __
Counting up: 9 → 10 → 11 → 12 → 13 → 14
Blanks:
10,
11,
13,
14
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Problem 7 (Christmas ornaments):
__, 16, __, __, __, 20
We need to go from before 16 to 20 in 5 steps total (including 16 and 20).
That means we’re counting by 1s again.
So: 15, 16, 17, 18, 19, 20
Blanks:
15,
17,
18,
19
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Final Answer:
1. 11, 14
2. 14, 17, 19
3. 11, 14, 17
4. 16, 19
5. 10, 13, 16
6. 10, 11, 13, 14
7. 15, 17, 18, 19
Parent Tip: Review the logic above to help your child master the concept of number pattern worksheet easy.
