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The 5s rule
| Question | Answer |
|---|---|
| 5^2 (5 squared) | 25 |
| 15^2 (15 squared) | 225 |
| 25^2 (25 squared) | 625 |
| 35^2 (35 squared) | 1225 |
| 45^2 (45 squared) | 2025 |
| 55^2 (55 squared) | 3025 |
| 65^2 (65 squared) | 4225 |
| 75^2 (75 squared) | 5625 |
| 85^2 (85 squared) | 7225 |
| 95^2 (95 squared) | 9025 |
| 105^2 (105 squared) | 11025 |
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