Not nearly as efficient as delete @hash{101..105}, but the following looks nice: 

    delete @hash{ grep {/^101$/../^105$/} sort keys %hash };

[download]
Unless you keep a sorted list of keys separately, I don't think you can do much better than that.

Updated slightly.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: Removing a certain number of hash keys by tye
in thread Removing a certain number of hash keys by myocom

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