Hi monks, I basically want to compare the keys between two hashes to see which they have in common. If they have one in common I want to multiply the values of both keys together. I have managed to do the comparing part, but not sure how to multiply the values. Please can anyone help?? e.g. Ideal output; 
dog = 55
cat = 12

[download]
The code; 

my %hash = (

     'dog' => '5',
     'sheep' => '10',
     'cat' => '3',

  );

my %hash2 = (

      'dog' => '11',
      'budgie' => '1', 
      'cat' => '4',

  ); 

foreach (keys %hash2)    {


     if (exists $hash{$_})   {

       print "$_ exists";
  
    }

}

[download]

In reply to comparing keys and values in different hashes by Anonymous Monk

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