Given some natural number n find the nth partial sum for:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\displaystyle\sum_{k=0}^{\lfloor log(n) \rfloor} \lfloor \frac{n}{10^k} \rfloor[/tex]

I find this question really difficult! If anyone could help, it would be greatly appreciated. Thanks in advance!

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# Help with nth partial sum?

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