For novices, functions are one of the most intimidating features of OpenOffice.org's Calc. Newcomers quickly learn that functions are a main feature of spreadsheets, but there are almost four hundred, ...
Daily Mail on MSN
'Simple' math tests leaves people racking their brains - can you solve it in 30 seconds?
Get your timer out and see whether you can remember the golden rule from grade school math class.
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