Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Merspi by jspittal
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Maths Teaching Resources | 0 | 2010-01-21 11:26:51 by jspittal |
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