Solution by Ruben Westerberg

perl/ch-1.sh and raku/ch-1.sh
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Breaks the string 123456789 into terms which are added or subtracted to sum to 100
Run the program to show all combinations

ch-2.pl and ch-2.p6
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Finds the smallest number of moves to (add 1, or double) to accumulate  1 into 200;
Run the program to show sequence of moves