Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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#1 2009-07-23 23:10:16
Some math olympiad books that you might want to buy (Grades 2-8)-deleted Last edited by wcy (2012-01-14 17:27:44)
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