Advanced MathEasyExtra tiles between two square patterns
Advanced Math practice question
The number of tiles in the nth pattern of a sequence is n². How many more tiles are in the 5th pattern than in the 4th?
Answer: 9
25 − 16 = 9.
Common wrong answers
- If you answered 1
- 1 is the change in n, not in the number of tiles.
- If you answered 25
- 25 is the 5th pattern alone.
- If you answered 41
- 41 adds the two patterns.
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