Let's solve the worksheet step by step.
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I. Look at the pattern and complete:
We need to identify the pattern in each sequence and fill in the next three numbers.
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a) 2, 4, 6, 8, 10, _____, _____, _____
- Pattern: Increasing by 2 each time (even numbers).
- Next: 12, 14, 16
✔ Answer: 12, 14, 16
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b) 5, 10, 15, 20, _____, _____, _____
- Pattern: Increasing by 5.
- Next: 25, 30, 35
✔ Answer: 25, 30, 35
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c) 6, 12, 18, 24, _____, _____, _____
- Pattern: Increasing by 6.
- Next: 30, 36, 42
✔ Answer: 30, 36, 42
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d) 20, 40, 60, 80, _____, _____, _____
- Pattern: Increasing by 20.
- Next: 100, 120, 140
✔ Answer: 100, 120, 140
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e) 40, 80, 120, 160, _____, _____, _____
- Pattern: Increasing by 40.
- Next: 200, 240, 280
✔ Answer: 200, 240, 280
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f) 15, 30, 45, 60, _____, _____, _____
- Pattern: Increasing by 15.
- Next: 75, 90, 105
✔ Answer: 75, 90, 105
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II. Insert the signs (+, -, or ×):
We need to insert the correct operation to make the equation true.
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a) 10 (×) 2 = 20
- Already given: 10 × 2 = 20 → Correct
✔
✔ Answer: ×
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b) 4 ( ) 4 = 8
- Try: 4 + 4 = 8 → Yes!
✔ Answer: +
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c) 8 ( ) 1 = 8
- 8 + 1 = 9
✘
- 8 - 1 = 7
✘
- 8 × 1 = 8
✔
✔ Answer: ×
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d) 10 ( ) 5 = 15
- 10 + 5 = 15 → Yes!
✔ Answer: +
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e) 4 ( ) 4 = 0
- 4 - 4 = 0 → Yes!
✔ Answer: -
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f) 6 ( ) 10 = 16
- 6 + 10 = 16 → Yes!
✔ Answer: +
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g) 2 ( ) 5 = 10
- 2 × 5 = 10 → Yes!
✔ Answer: ×
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h) 10 ( ) 5 = 50
- 10 × 5 = 50 → Yes!
✔ Answer: ×
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✔ Final Answers:
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Part I:
a) 12, 14, 16
b) 25, 30, 35
c) 30, 36, 42
d) 100, 120, 140
e) 200, 240, 280
f) 75, 90, 105
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Part II:
a) ×
b) +
c) ×
d) +
e) -
f) +
g) ×
h) ×
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Let me know if you'd like this formatted as a printable answer key!
Parent Tip: Review the logic above to help your child master the concept of pattern worksheet for third.
