Am 09.01.2014 um 18:36 schrieb Otared Kavian <otared@gmail.com>:

> Hi Wolfgang, Hi Aditya,
> 
> Thanks for your attention.
> Unfortunately adding 
> 	\keepblocks[question] 
> the example I sent before does not work in mkiv, and changing 
> 	location=hanging
> to
> 	alternative=hanging
> does not help neither…
> The error message in mkiv is:
> 	\dostopnormalblock ...meter \c!after \par \egroup 
>                                                   
> <argument> ...fact that $2\times 5 = 10$. \dostopnormalblock 
>                                                   \dostartnormalblock {hint}...
> \dodowithpar ...dler \v!construction \endcsname #1
>                                                   \csname \??constructionsto…
> 
> So I don’t know what to do if one has to use mkiv.

When you enumerations in this form

\beginanswer
\answer $10$
\endanswer

you have to finish the paragraph, e.g. by adding \par

\beginanswer
\answer $10$\par
\endanswer

or better use the start/stop commands for the enumeration.

\beginanswer
\startanswer
$10$
\stopanswer
\endanswer

Wolfgang