Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**StrollingBy**- Replies: 3

Would you explain to me just - step by step - how I convert Si(3pie) into a decimal?

Thank you.

Onward and upward.

Thanks, bobbym. I got there in the end, so it was down to my stupid errors.

**StrollingBy**- Replies: 3

I'm working my way through some probability questions but, despite employing the correct approach, I'm falling at the last hurdle. Please show me how 13/15 x 0.5 x 0.5 x O.5 x 0.5 + 2/15 x 0.3 x 0.3 x 0.3 x 0.3 becomes 5.52%.

I just can't arrive at that result.

**StrollingBy**- Replies: 5

As an elderly gentleman who has decided to encourage his 'little grey cells' to become more active, I have joined your happy band in the hope of having a good workout. Currently I'm using the 'Khan Academy' site to help blow away the cobwebs but will doubtless be postings queries soon.

Much power to your elbows.

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