split returns a list. Adding a list to a scalar does not really make sense in this context. Maybe you want a loop?

my @items = qw(1 2 3 4 5 6);
my $val = 10;
$val += $_
    for @items;

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In reply to Re^3: Finding the sum of individual columns by Corion
in thread Finding the sum of individual columns by thillai_selvan

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