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1st Grade Math Worksheet: Finish the Pattern

A black and white 1st grade math worksheet titled "FINISH the PATTERN" with five rows of number sequences to complete, featuring a chalice and grapes illustration and the IHS symbol.

A black and white 1st grade math worksheet titled "FINISH the PATTERN" with five rows of number sequences to complete, featuring a chalice and grapes illustration and the IHS symbol.

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ID: #497660
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Show Answer Key & Explanations Step-by-step solution for: Finish The Pattern - 1st Grade Math Worksheet Catholic ...
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Absolutely! Let’s solve each number pattern one by one. The goal is to find the rule (or pattern) in each sequence and then continue it by filling in the blanks.

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Pattern 1:
> 1, 2, 3, 4, 5, __, __, __, __, __

✔ Rule: Count up by 1 each time (adding 1).

So after 5:
- 5 + 1 = 6
- 6 + 1 = 7
- 7 + 1 = 8
- 8 + 1 = 9
- 9 + 1 = 10

✔ Answer: 6, 7, 8, 9, 10

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Pattern 2:
> 2, 4, 6, 8, 10, __, __, __, __, __

✔ Rule: Even numbers — or add 2 each time.

After 10:
- 10 + 2 = 12
- 12 + 2 = 14
- 14 + 2 = 16
- 16 + 2 = 18
- 18 + 2 = 20

✔ Answer: 12, 14, 16, 18, 20

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Pattern 3:
> 3, 6, 9, 12, 15, __, __, __, __, __

✔ Rule: Multiples of 3 — or add 3 each time.

After 15:
- 15 + 3 = 18
- 18 + 3 = 21
- 21 + 3 = 24
- 24 + 3 = 27
- 27 + 3 = 30

✔ Answer: 18, 21, 24, 27, 30

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Pattern 4:
> 10, 20, 30, 40, 50, __, __, __, __

✔ Rule: Multiples of 10 — or add 10 each time.

After 50:
- 50 + 10 = 60
- 60 + 10 = 70
- 70 + 10 = 80
- 80 + 10 = 90

✔ Answer: 60, 70, 80, 90

*(Note: This row has only 4 blanks, so we fill 4 numbers.)*

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Pattern 5:
> 10, 9, 8, 7, 6, __, __, __, __, __

✔ Rule: Count down by 1 each time (subtracting 1).

After 6:
- 6 - 1 = 5
- 5 - 1 = 4
- 4 - 1 = 3
- 3 - 1 = 2
- 2 - 1 = 1

✔ Answer: 5, 4, 3, 2, 1

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## ✔ Final Answers:

1. 6, 7, 8, 9, 10
2. 12, 14, 16, 18, 20
3. 18, 21, 24, 27, 30
4. 60, 70, 80, 90
5. 5, 4, 3, 2, 1

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This worksheet helps build foundational math skills like recognizing number sequences, counting forward/backward, and understanding multiples — perfect for 1st grade! 🎯
Parent Tip: Review the logic above to help your child master the concept of pattern boxes worksheet.
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