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Finding Pattern Answer Key
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Finding Pattern Answer Key
📊 Part 1: Multiple Choice Questions
1. What is the next number in the pattern: 3, 6, 9, 12, ___?
14
✓
15
16
18
2. Which rule describes the pattern: 2, 4, 8, 16, 32?
Add 2
✓
Multiply by 2
Add 4
Subtract 2
3. What are the next two terms in: 1, 4, 7, 10, ___, ___?
12, 14
✓
13, 16
11, 14
14, 17
4. Which patterns follow the "add 5" rule? (Select all that apply)
✓
2, 7, 12, 17
1, 6, 10, 15
✓
5, 10, 15, 20
3, 8, 11, 16
✏️ Part 2: Short Answer Questions
5. Complete the pattern and explain the rule: 50, 45, 40, 35, ___, ___
Answer: 30, 25
Rule: Subtract 5 each time
6. Create your own number pattern using the rule "multiply by 3, then subtract 1". Start with 2.
Pattern: 2, 5, 14, 41, 122
Working: 2×3-1=5, 5×3-1=14, 14×3-1=41, 41×3-1=122
7. A cinema charges $8 for the first ticket, then $6 for each additional ticket. How much would 5 tickets cost in total?
Answer: $32
Working: $8 + (4 × $6) = $8 + $24 = $32
🔍 Part 3: Pattern Analysis
8. Look at this growing pattern of dots:
Figure 1: • (1 dot)
Figure 2: •• (2 dots)
Figure 3: ••• (3 dots)
Figure 4: •••• (4 dots)
Rule: Add 1 dot each time
Figure 10 would have: 10 dots
9. A plant grows 3 cm each week. If it starts at 12 cm tall, how tall will it be after 6 weeks?
Week 0: 12 cm
Week 1: 15 cm
Week 2: 18 cm
Week 3: 21 cm
Week 4: 24 cm
Week 5: 27 cm
Week 6: 30 cm
Answer: 30 cm tall
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