Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Perfect square rule by justlookingforthemoment
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Exercises | 2 | 2006-10-27 12:40:22 by creative1301 |
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