Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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Multiply by 12 Shortcut
by koconnor
This is Cool
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2008-02-10 01:04:22
by JaneFairfax
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