I have an enumerated list of math exercises in Beamer. I also have an enumerated list of answers to the math exercises in the last frame(s) of my document.

I would like to link each question to its answer in such a way that if I remove an exercise, or reorder the exercises, the list of answers is still synchronized with the list of exercises.

Is there a way to accomplish this?

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    Sep 9, 2016 at 3:36

1 Answer 1


How about something like this, using expl3 to create some functions to store the questions and answers for later use. They can then be printed whenever you want.

I used an article-documentclass here, but I think this would work for beamer too.


enter image description here



\seq_new:N \l_user_Q_seq
\seq_new:N \l_user_A_seq
  % #1: Question
  % #2: Answer
   \seq_put_right:Nn \l_user_Q_seq {#1}
   \seq_put_right:Nn \l_user_A_seq {#2}
  \seq_map_inline:Nn \l_user_Q_seq {\item ##1}
  \seq_map_inline:Nn \l_user_A_seq {\item ##1}


  How much wood could a woodchuck chuck if a woodchuck could chuck wood?%
  A woodchuck would chuck as much wood as a woodchuck would if a woodchuck could chuck wood.}
  How many ducks are there on \texttt{tex.stackexchange}?
  Input needed from experts in the field. }



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